Subtract 21/32 from 42/15
1st number: 2 12/15, 2nd number: 21/32
42/15 - 21/32 is 343/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 15 × 32 = 480,
42/15 = 42 × 32/15 × 32 = 1344/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
21/32 = 21 × 15/32 × 15 = 315/480 - Subtract the two like fractions:
1344/480 - 315/480 = 1344 - 315/480 = 1029/480 - After reducing the fraction, the answer is 343/160
- In mixed form: 223/160
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