Subtract 90/70 from 60/49
1st number: 1 11/49, 2nd number: 1 20/70
60/49 - 90/70 is -3/49.
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,
60/49 = 60 × 10/49 × 10 = 600/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
90/70 = 90 × 7/70 × 7 = 630/490 - Subtract the two like fractions:
600/490 - 630/490 = 600 - 630/490 = -30/490 - After reducing the fraction, the answer is -3/49
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Related: 60/98-90/70