Subtract 21/49 from 20/15
1st number: 1 5/15, 2nd number: 21/49
20/15 - 21/49 is 19/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
20/15 = 20 × 49/15 × 49 = 980/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
21/49 = 21 × 15/49 × 15 = 315/735 - Subtract the two like fractions:
980/735 - 315/735 = 980 - 315/735 = 665/735 - After reducing the fraction, the answer is 19/21
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