Subtract 81/49 from 42/30
1st number: 1 12/30, 2nd number: 1 32/49
42/30 - 81/49 is -62/245.
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,
42/30 = 42 × 49/30 × 49 = 2058/1470 - Likewise, for the 2nd fraction, since 49 × 30 = 1470,
81/49 = 81 × 30/49 × 30 = 2430/1470 - Subtract the two like fractions:
2058/1470 - 2430/1470 = 2058 - 2430/1470 = -372/1470 - After reducing the fraction, the answer is -62/245
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