Subtract 90/49 from 27/28
1st number: 27/28, 2nd number: 1 41/49
27/28 - 90/49 is -171/196.
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,
27/28 = 27 × 7/28 × 7 = 189/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
90/49 = 90 × 4/49 × 4 = 360/196 - Subtract the two like fractions:
189/196 - 360/196 = 189 - 360/196 = -171/196
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