Subtract 4/75 from 21/20
1st number: 1 1/20, 2nd number: 4/75
21/20 - 4/75 is 299/300.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
21/20 = 21 × 15/20 × 15 = 315/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
4/75 = 4 × 4/75 × 4 = 16/300 - Subtract the two like fractions:
315/300 - 16/300 = 315 - 16/300 = 299/300
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