Subtract 84/63 from 72/49
1st number: 1 23/49, 2nd number: 1 21/63
72/49 - 84/63 is 20/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
72/49 = 72 × 9/49 × 9 = 648/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
84/63 = 84 × 7/63 × 7 = 588/441 - Subtract the two like fractions:
648/441 - 588/441 = 648 - 588/441 = 60/441 - After reducing the fraction, the answer is 20/147
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