Subtract 42/16 from 18/5
1st number: 3 3/5, 2nd number: 2 10/16
18/5 - 42/16 is 39/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
18/5 = 18 × 16/5 × 16 = 288/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Subtract the two like fractions:
288/80 - 210/80 = 288 - 210/80 = 78/80 - After reducing the fraction, the answer is 39/40
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