Subtract 40/7 from 21/32
1st number: 21/32, 2nd number: 5 5/7
21/32 - 40/7 is -1133/224.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 7 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 32 × 7 = 224,
21/32 = 21 × 7/32 × 7 = 147/224 - Likewise, for the 2nd fraction, since 7 × 32 = 224,
40/7 = 40 × 32/7 × 32 = 1280/224 - Subtract the two like fractions:
147/224 - 1280/224 = 147 - 1280/224 = -1133/224
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