Subtract 42/30 from 21/32
1st number: 21/32, 2nd number: 1 12/30
21/32 - 42/30 is -119/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 30 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 32 × 15 = 480,
21/32 = 21 × 15/32 × 15 = 315/480 - Likewise, for the 2nd fraction, since 30 × 16 = 480,
42/30 = 42 × 16/30 × 16 = 672/480 - Subtract the two like fractions:
315/480 - 672/480 = 315 - 672/480 = -357/480 - After reducing the fraction, the answer is -119/160
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