Subtract 42/49 from 2/4
2/4 - 42/49 is -5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 49 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 4 × 49 = 196,
2/4 = 2 × 49/4 × 49 = 98/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
42/49 = 42 × 4/49 × 4 = 168/196 - Subtract the two like fractions:
98/196 - 168/196 = 98 - 168/196 = -70/196 - After reducing the fraction, the answer is -5/14
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