Subtract 84/7 from 28/9
1st number: 3 1/9, 2nd number: 12 0/7
28/9 - 84/7 is -80/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
28/9 = 28 × 7/9 × 7 = 196/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
84/7 = 84 × 9/7 × 9 = 756/63 - Subtract the two like fractions:
196/63 - 756/63 = 196 - 756/63 = -560/63 - After reducing the fraction, the answer is -80/9
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