Subtract 21/9 from 45/60
1st number: 45/60, 2nd number: 2 3/9
45/60 - 21/9 is -19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
45/60 = 45 × 3/60 × 3 = 135/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
21/9 = 21 × 20/9 × 20 = 420/180 - Subtract the two like fractions:
135/180 - 420/180 = 135 - 420/180 = -285/180 - After reducing the fraction, the answer is -19/12
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