Subtract 15/81 from 72/35
1st number: 2 2/35, 2nd number: 15/81
72/35 - 15/81 is 1769/945.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 81 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 35 × 81 = 2835,
72/35 = 72 × 81/35 × 81 = 5832/2835 - Likewise, for the 2nd fraction, since 81 × 35 = 2835,
15/81 = 15 × 35/81 × 35 = 525/2835 - Subtract the two like fractions:
5832/2835 - 525/2835 = 5832 - 525/2835 = 5307/2835 - After reducing the fraction, the answer is 1769/945
- In mixed form: 1824/945
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