Subtract 21/8 from 36/28
1st number: 1 8/28, 2nd number: 2 5/8
36/28 - 21/8 is -75/56.
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,
36/28 = 36 × 2/28 × 2 = 72/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
21/8 = 21 × 7/8 × 7 = 147/56 - Subtract the two like fractions:
72/56 - 147/56 = 72 - 147/56 = -75/56
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