Subtract 28/12 from 90/14
1st number: 6 6/14, 2nd number: 2 4/12
90/14 - 28/12 is 86/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
90/14 = 90 × 6/14 × 6 = 540/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
28/12 = 28 × 7/12 × 7 = 196/84 - Subtract the two like fractions:
540/84 - 196/84 = 540 - 196/84 = 344/84 - After reducing the fraction, the answer is 86/21
- In mixed form: 42/21
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