Subtract 20/28 from 45/98
45/98 - 20/28 is -25/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 28 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 98 × 2 = 196,
45/98 = 45 × 2/98 × 2 = 90/196 - Likewise, for the 2nd fraction, since 28 × 7 = 196,
20/28 = 20 × 7/28 × 7 = 140/196 - Subtract the two like fractions:
90/196 - 140/196 = 90 - 140/196 = -50/196 - After reducing the fraction, the answer is -25/98
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