Subtract 28/25 from 21/40
1st number: 21/40, 2nd number: 1 3/25
21/40 - 28/25 is -119/200.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
21/40 = 21 × 5/40 × 5 = 105/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
28/25 = 28 × 8/25 × 8 = 224/200 - Subtract the two like fractions:
105/200 - 224/200 = 105 - 224/200 = -119/200
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