Subtract 21/63 from 28/20
1st number: 1 8/20, 2nd number: 21/63
28/20 - 21/63 is 16/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
28/20 = 28 × 63/20 × 63 = 1764/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Subtract the two like fractions:
1764/1260 - 420/1260 = 1764 - 420/1260 = 1344/1260 - After reducing the fraction, the answer is 16/15
- In mixed form: 11/15
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