Subtract 40/81 from 70/9
1st number: 7 7/9, 2nd number: 40/81
70/9 - 40/81 is 590/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
70/9 = 70 × 9/9 × 9 = 630/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
40/81 = 40 × 1/81 × 1 = 40/81 - Subtract the two like fractions:
630/81 - 40/81 = 630 - 40/81 = 590/81 - In mixed form: 723/81
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