Subtract 12/9 from 21/60
1st number: 21/60, 2nd number: 1 3/9
21/60 - 12/9 is -59/60.
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,
21/60 = 21 × 3/60 × 3 = 63/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
12/9 = 12 × 20/9 × 20 = 240/180 - Subtract the two like fractions:
63/180 - 240/180 = 63 - 240/180 = -177/180 - After reducing the fraction, the answer is -59/60
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