Subtract 50/49 from 81/70
1st number: 1 11/70, 2nd number: 1 1/49
81/70 - 50/49 is 67/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
81/70 = 81 × 7/70 × 7 = 567/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
50/49 = 50 × 10/49 × 10 = 500/490 - Subtract the two like fractions:
567/490 - 500/490 = 567 - 500/490 = 67/490
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