Subtract 21/32 from 3/7
3/7 - 21/32 is -51/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 7 × 32 = 224,
3/7 = 3 × 32/7 × 32 = 96/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
21/32 = 21 × 7/32 × 7 = 147/224 - Subtract the two like fractions:
96/224 - 147/224 = 96 - 147/224 = -51/224
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