Subtract 21/32 from 90/7
1st number: 12 6/7, 2nd number: 21/32
90/7 - 21/32 is 2733/224.
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,
90/7 = 90 × 32/7 × 32 = 2880/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
21/32 = 21 × 7/32 × 7 = 147/224 - Subtract the two like fractions:
2880/224 - 147/224 = 2880 - 147/224 = 2733/224 - In mixed form: 1245/224
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