Subtract 40/30 from 81/9
1st number: 9 0/9, 2nd number: 1 10/30
81/9 - 40/30 is 23/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
81/9 = 81 × 10/9 × 10 = 810/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
40/30 = 40 × 3/30 × 3 = 120/90 - Subtract the two like fractions:
810/90 - 120/90 = 810 - 120/90 = 690/90 - After reducing the fraction, the answer is 23/3
- In mixed form: 72/3
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