Subtract 70/45 from 81/12
1st number: 6 9/12, 2nd number: 1 25/45
81/12 - 70/45 is 187/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
81/12 = 81 × 15/12 × 15 = 1215/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
70/45 = 70 × 4/45 × 4 = 280/180 - Subtract the two like fractions:
1215/180 - 280/180 = 1215 - 280/180 = 935/180 - After reducing the fraction, the answer is 187/36
- In mixed form: 57/36
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