Subtract 81/49 from 90/30
1st number: 3 0/30, 2nd number: 1 32/49
90/30 - 81/49 is 66/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 49 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
90/30 = 90 × 49/30 × 49 = 4410/1470 - Likewise, for the 2nd fraction, since 49 × 30 = 1470,
81/49 = 81 × 30/49 × 30 = 2430/1470 - Subtract the two like fractions:
4410/1470 - 2430/1470 = 4410 - 2430/1470 = 1980/1470 - After reducing the fraction, the answer is 66/49
- In mixed form: 117/49
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