Subtract 2/45 from 81/7
1st number: 11 4/7, 2nd number: 2/45
81/7 - 2/45 is 3631/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
81/7 = 81 × 45/7 × 45 = 3645/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
2/45 = 2 × 7/45 × 7 = 14/315 - Subtract the two like fractions:
3645/315 - 14/315 = 3645 - 14/315 = 3631/315 - In mixed form: 11166/315
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