Subtract 18/32 from 21/7
1st number: 3 0/7, 2nd number: 18/32
21/7 - 18/32 is 39/16.
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,
21/7 = 21 × 32/7 × 32 = 672/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
18/32 = 18 × 7/32 × 7 = 126/224 - Subtract the two like fractions:
672/224 - 126/224 = 672 - 126/224 = 546/224 - After reducing the fraction, the answer is 39/16
- In mixed form: 27/16
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