Subtract 5/81 from 70/40
1st number: 1 30/40, 2nd number: 5/81
70/40 - 5/81 is 547/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
70/40 = 70 × 81/40 × 81 = 5670/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
5/81 = 5 × 40/81 × 40 = 200/3240 - Subtract the two like fractions:
5670/3240 - 200/3240 = 5670 - 200/3240 = 5470/3240 - After reducing the fraction, the answer is 547/324
- In mixed form: 1223/324
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