Subtract 42/49 from 2/8
2/8 - 42/49 is -17/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 8 × 49 = 392,
2/8 = 2 × 49/8 × 49 = 98/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
42/49 = 42 × 8/49 × 8 = 336/392 - Subtract the two like fractions:
98/392 - 336/392 = 98 - 336/392 = -238/392 - After reducing the fraction, the answer is -17/28
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