Subtract 28/84 from 90/8
1st number: 11 2/8, 2nd number: 28/84
90/8 - 28/84 is 131/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
90/8 = 90 × 21/8 × 21 = 1890/168 - Likewise, for the 2nd fraction, since 84 × 2 = 168,
28/84 = 28 × 2/84 × 2 = 56/168 - Subtract the two like fractions:
1890/168 - 56/168 = 1890 - 56/168 = 1834/168 - After reducing the fraction, the answer is 131/12
- In mixed form: 1011/12
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