Subtract 70/49 from 18/28
1st number: 18/28, 2nd number: 1 21/49
18/28 - 70/49 is -11/14.
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,
18/28 = 18 × 7/28 × 7 = 126/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
70/49 = 70 × 4/49 × 4 = 280/196 - Subtract the two like fractions:
126/196 - 280/196 = 126 - 280/196 = -154/196 - After reducing the fraction, the answer is -11/14
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