Subtract 21/10 from 30/25
1st number: 1 5/25, 2nd number: 2 1/10
30/25 - 21/10 is -9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 10 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 25 × 2 = 50,
30/25 = 30 × 2/25 × 2 = 60/50 - Likewise, for the 2nd fraction, since 10 × 5 = 50,
21/10 = 21 × 5/10 × 5 = 105/50 - Subtract the two like fractions:
60/50 - 105/50 = 60 - 105/50 = -45/50 - After reducing the fraction, the answer is -9/10
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