Subtract 45/49 from 9/28
9/28 - 45/49 is -117/196.
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,
9/28 = 9 × 7/28 × 7 = 63/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
45/49 = 45 × 4/49 × 4 = 180/196 - Subtract the two like fractions:
63/196 - 180/196 = 63 - 180/196 = -117/196
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