Subtract 42/5 from 27/40
1st number: 27/40, 2nd number: 8 2/5
27/40 - 42/5 is -309/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
27/40 = 27 × 1/40 × 1 = 27/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
42/5 = 42 × 8/5 × 8 = 336/40 - Subtract the two like fractions:
27/40 - 336/40 = 27 - 336/40 = -309/40
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