Subtract 42/60 from 4/40
4/40 - 42/60 is -3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
4/40 = 4 × 3/40 × 3 = 12/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
42/60 = 42 × 2/60 × 2 = 84/120 - Subtract the two like fractions:
12/120 - 84/120 = 12 - 84/120 = -72/120 - After reducing the fraction, the answer is -3/5
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