Subtract 72/7 from 70/63
1st number: 1 7/63, 2nd number: 10 2/7
70/63 - 72/7 is -578/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
70/63 = 70 × 1/63 × 1 = 70/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
72/7 = 72 × 9/7 × 9 = 648/63 - Subtract the two like fractions:
70/63 - 648/63 = 70 - 648/63 = -578/63
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