Subtract 7/70 from 72/63
1st number: 1 9/63, 2nd number: 7/70
72/63 - 7/70 is 73/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
72/63 = 72 × 10/63 × 10 = 720/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
7/70 = 7 × 9/70 × 9 = 63/630 - Subtract the two like fractions:
720/630 - 63/630 = 720 - 63/630 = 657/630 - After reducing the fraction, the answer is 73/70
- In mixed form: 13/70
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