Subtract 72/70 from 81/49
1st number: 1 32/49, 2nd number: 1 2/70
81/49 - 72/70 is 153/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
81/49 = 81 × 10/49 × 10 = 810/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
72/70 = 72 × 7/70 × 7 = 504/490 - Subtract the two like fractions:
810/490 - 504/490 = 810 - 504/490 = 306/490 - After reducing the fraction, the answer is 153/245
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