Subtract 21/54 from 25/15
1st number: 1 10/15, 2nd number: 21/54
25/15 - 21/54 is 23/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
25/15 = 25 × 18/15 × 18 = 450/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Subtract the two like fractions:
450/270 - 105/270 = 450 - 105/270 = 345/270 - After reducing the fraction, the answer is 23/18
- In mixed form: 15/18
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