Subtract 10/25 from 21/10
1st number: 2 1/10, 2nd number: 10/25
21/10 - 10/25 is 17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 25 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 10 × 5 = 50,
21/10 = 21 × 5/10 × 5 = 105/50 - Likewise, for the 2nd fraction, since 25 × 2 = 50,
10/25 = 10 × 2/25 × 2 = 20/50 - Subtract the two like fractions:
105/50 - 20/50 = 105 - 20/50 = 85/50 - After reducing the fraction, the answer is 17/10
- In mixed form: 17/10
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