Subtract 28/8 from 90/28
1st number: 3 6/28, 2nd number: 3 4/8
90/28 - 28/8 is -2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
90/28 = 90 × 2/28 × 2 = 180/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
28/8 = 28 × 7/8 × 7 = 196/56 - Subtract the two like fractions:
180/56 - 196/56 = 180 - 196/56 = -16/56 - After reducing the fraction, the answer is -2/7
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