Subtract 9/40 from 63/28
1st number: 2 7/28, 2nd number: 9/40
63/28 - 9/40 is 81/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
63/28 = 63 × 10/28 × 10 = 630/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280 - Subtract the two like fractions:
630/280 - 63/280 = 630 - 63/280 = 567/280 - After reducing the fraction, the answer is 81/40
- In mixed form: 21/40
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