Subtract 21/20 from 30/25
1st number: 1 5/25, 2nd number: 1 1/20
30/25 - 21/20 is 3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
30/25 = 30 × 4/25 × 4 = 120/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
21/20 = 21 × 5/20 × 5 = 105/100 - Subtract the two like fractions:
120/100 - 105/100 = 120 - 105/100 = 15/100 - After reducing the fraction, the answer is 3/20
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