Subtract 21/12 from 50/45
1st number: 1 5/45, 2nd number: 1 9/12
50/45 - 21/12 is -23/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
50/45 = 50 × 4/45 × 4 = 200/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
21/12 = 21 × 15/12 × 15 = 315/180 - Subtract the two like fractions:
200/180 - 315/180 = 200 - 315/180 = -115/180 - After reducing the fraction, the answer is -23/36
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