Subtract 20/49 from 90/28
1st number: 3 6/28, 2nd number: 20/49
90/28 - 20/49 is 275/98.
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,
90/28 = 90 × 7/28 × 7 = 630/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
20/49 = 20 × 4/49 × 4 = 80/196 - Subtract the two like fractions:
630/196 - 80/196 = 630 - 80/196 = 550/196 - After reducing the fraction, the answer is 275/98
- In mixed form: 279/98
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