Subtract 20/49 from 4/28
4/28 - 20/49 is -13/49.
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,
4/28 = 4 × 7/28 × 7 = 28/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
20/49 = 20 × 4/49 × 4 = 80/196 - Subtract the two like fractions:
28/196 - 80/196 = 28 - 80/196 = -52/196 - After reducing the fraction, the answer is -13/49
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