Subtract 48/49 from 15/20
15/20 - 48/49 is -45/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
15/20 = 15 × 49/20 × 49 = 735/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
48/49 = 48 × 20/49 × 20 = 960/980 - Subtract the two like fractions:
735/980 - 960/980 = 735 - 960/980 = -225/980 - After reducing the fraction, the answer is -45/196
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