Subtract 81/24 from 70/36
1st number: 1 34/36, 2nd number: 3 9/24
70/36 - 81/24 is -103/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 24 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
70/36 = 70 × 2/36 × 2 = 140/72 - Likewise, for the 2nd fraction, since 24 × 3 = 72,
81/24 = 81 × 3/24 × 3 = 243/72 - Subtract the two like fractions:
140/72 - 243/72 = 140 - 243/72 = -103/72
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