Subtract 7/49 from 20/28
20/28 - 7/49 is 4/7.
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,
20/28 = 20 × 7/28 × 7 = 140/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
7/49 = 7 × 4/49 × 4 = 28/196 - Subtract the two like fractions:
140/196 - 28/196 = 140 - 28/196 = 112/196 - After reducing the fraction, the answer is 4/7
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