Subtract 50/81 from 90/7
1st number: 12 6/7, 2nd number: 50/81
90/7 - 50/81 is 6940/567.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
90/7 = 90 × 81/7 × 81 = 7290/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
50/81 = 50 × 7/81 × 7 = 350/567 - Subtract the two like fractions:
7290/567 - 350/567 = 7290 - 350/567 = 6940/567 - In mixed form: 12136/567
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