Question
Evaluate: (1.5 × 8) + (2.5 × 4) − (3.2 × 5)
Solution
Convert to fractions: 1.5 = 3/2 2.5 = 5/2 3.2 = 32/10 = 16/5 Now, 1.5 × 8 = (3/2) × 8 = 3 × 4 = 12 2.5 × 4 = (5/2) × 4 = 5 × 2 = 10 3.2 × 5 = (16/5) × 5 = 16 Expression = 12 + 10 − 16 = 22 − 16 = 6
Which fraction bears the same ratio to 1/27 as 3/11 does to 4/9?
Evaluate: 4.8 × 2.5 + 9.6 ÷ 0.4
Calculate: 0.75 × 0.4 + 2.5 ÷ 0.5 − 0.36
A fraction becomes 6/7 when 3 is added to both its numerator and denominator. Similarly, it becomes 7/8 when 5 is added to both i...
Evaluate: 0.5 + 0.75 + 0.75
The fraction equivalent to 0.474747... is:
Evaluate: 2.4 × 1.25 + 6.5 ÷ 0.5
Numerator of a fraction is 4 less than the denominator. If 6 and 7 are added to numerator and denominator of a fraction respectively, then fraction beco...
Which of the following fractions lies between 3/7 and 8/9?
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