Subtract 21/45 from 75/60
1st number: 1 15/60, 2nd number: 21/45
75/60 - 21/45 is 47/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
75/60 = 75 × 3/60 × 3 = 225/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
21/45 = 21 × 4/45 × 4 = 84/180 - Subtract the two like fractions:
225/180 - 84/180 = 225 - 84/180 = 141/180 - After reducing the fraction, the answer is 47/60
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