Subtract 63/32 from 20/42
1st number: 20/42, 2nd number: 1 31/32
20/42 - 63/32 is -1003/672.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
20/42 = 20 × 16/42 × 16 = 320/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
63/32 = 63 × 21/32 × 21 = 1323/672 - Subtract the two like fractions:
320/672 - 1323/672 = 320 - 1323/672 = -1003/672
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