Subtract 18/49 from 8/28
8/28 - 18/49 is -4/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 49 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 28 × 7 = 196,
8/28 = 8 × 7/28 × 7 = 56/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
18/49 = 18 × 4/49 × 4 = 72/196 - Subtract the two like fractions:
56/196 - 72/196 = 56 - 72/196 = -16/196 - After reducing the fraction, the answer is -4/49
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