Power Engineering 4A Math
Study Guide & Practice
Questions 2026/2027
,Which of the following is an improper fraction? d
a) 37/39
b) 6 3/4
c) 65/100
d) 3/2
e) 1/2
Which of the following is a mixed number? c
a) 32/36
b) 19/5
c) 3 1/5
d) 6/24
e) 35/7
Convert the following mixed numbers to improper fractions. 6;21/5;68/7;21/2;
(Enter your answer in this style 2 2/3 = 8/3)
1) 6 5/6 = __________
2) 4 1/5 = __________
3) 9 5/7 = __________
4) 10 1/2 = __________
Evaluate the following 3/8 + 2/3 - 1/2 to lowest terms. e
a) 12/24
b) 6/12
c) 6/24
d) 6/13
e) 13/24
Evaluate the following 3/10 x 5/2 - 2/3 to lowest terms. a
a) 1/12
b) 11/20
c) 5/60
d) 33/60
e) 3/6
Evaluate the following fractional problems. (Reduce to 1/4;1/5;1/8;1/48;8/25;1 23/112;68 2/5;51 3/7;
lowest
terms)
1) 3/8 x 3/4 x 8/9 = __________
2) 1/2 x 3/7 x 14/15 = __________
3) 3/8 x 2/3 x 4/5 x 5/8 = __________
4) 3/10 x 5/6 x 1/9 x 3/4 = __________
5) 21/16 x 12/35 x 32/45 = __________
6) 27/35 x 5/16 x 15/3 = __________
7) 2 1/2 x 7 3/5 x 3 3/5 = __________
8) 4 2/3 x 8 4/7 x 1 2/7 = __________
In lowest terms 0.04 is equal to: b
a) 1/5
b) 1/25
c) 1/40
d) 4/10
e) 4/100
, 19/12 is equal to: c
a) 2
b) 9.6
c) 1.583
d) 6.931
e) 7
95% of 63 litres of gasoline equals: a
a) 59.85 litres
b) 599 litres
c) 0.663 litres
d) 66.32 litres
e) 95 litres
62% of 85,362 equals: e
a) 22,932.64
b) 13.768
c) 5,292.492
d) 137,680.65
e) 52,924.44
An elastic is stretched by 86% to a length of 5.8 m. a
Calculate the original length.
a) 3.118 m
b) 0.067 m
c) 4.988 m
d) 2.903 m
e) 8.675 m
63 is what percent of 260? d
a) 41.27%
b) 2.42%
c) 0.24%
d) 24.23%
e) 4.12%
Convert the following percentages into fractions. (Reduce 19/20;3/4;1/10;3/20;17/50;39/50;1/1&1;111/200;
to
lowest terms)
1) 95% = __________
2) 75% = __________
3) 10% = __________
4) 15% = __________
5) 34% = __________
6) 78% = __________
7) 100% = __________
8) 55.5% = __________
What is the ratio between a mass of 36 kg and 928 L? e
a) 232 to 9
b) 45.6
c) 0.088 kL
d) 4.59
e) None of the above
Study Guide & Practice
Questions 2026/2027
,Which of the following is an improper fraction? d
a) 37/39
b) 6 3/4
c) 65/100
d) 3/2
e) 1/2
Which of the following is a mixed number? c
a) 32/36
b) 19/5
c) 3 1/5
d) 6/24
e) 35/7
Convert the following mixed numbers to improper fractions. 6;21/5;68/7;21/2;
(Enter your answer in this style 2 2/3 = 8/3)
1) 6 5/6 = __________
2) 4 1/5 = __________
3) 9 5/7 = __________
4) 10 1/2 = __________
Evaluate the following 3/8 + 2/3 - 1/2 to lowest terms. e
a) 12/24
b) 6/12
c) 6/24
d) 6/13
e) 13/24
Evaluate the following 3/10 x 5/2 - 2/3 to lowest terms. a
a) 1/12
b) 11/20
c) 5/60
d) 33/60
e) 3/6
Evaluate the following fractional problems. (Reduce to 1/4;1/5;1/8;1/48;8/25;1 23/112;68 2/5;51 3/7;
lowest
terms)
1) 3/8 x 3/4 x 8/9 = __________
2) 1/2 x 3/7 x 14/15 = __________
3) 3/8 x 2/3 x 4/5 x 5/8 = __________
4) 3/10 x 5/6 x 1/9 x 3/4 = __________
5) 21/16 x 12/35 x 32/45 = __________
6) 27/35 x 5/16 x 15/3 = __________
7) 2 1/2 x 7 3/5 x 3 3/5 = __________
8) 4 2/3 x 8 4/7 x 1 2/7 = __________
In lowest terms 0.04 is equal to: b
a) 1/5
b) 1/25
c) 1/40
d) 4/10
e) 4/100
, 19/12 is equal to: c
a) 2
b) 9.6
c) 1.583
d) 6.931
e) 7
95% of 63 litres of gasoline equals: a
a) 59.85 litres
b) 599 litres
c) 0.663 litres
d) 66.32 litres
e) 95 litres
62% of 85,362 equals: e
a) 22,932.64
b) 13.768
c) 5,292.492
d) 137,680.65
e) 52,924.44
An elastic is stretched by 86% to a length of 5.8 m. a
Calculate the original length.
a) 3.118 m
b) 0.067 m
c) 4.988 m
d) 2.903 m
e) 8.675 m
63 is what percent of 260? d
a) 41.27%
b) 2.42%
c) 0.24%
d) 24.23%
e) 4.12%
Convert the following percentages into fractions. (Reduce 19/20;3/4;1/10;3/20;17/50;39/50;1/1&1;111/200;
to
lowest terms)
1) 95% = __________
2) 75% = __________
3) 10% = __________
4) 15% = __________
5) 34% = __________
6) 78% = __________
7) 100% = __________
8) 55.5% = __________
What is the ratio between a mass of 36 kg and 928 L? e
a) 232 to 9
b) 45.6
c) 0.088 kL
d) 4.59
e) None of the above
