Subtract 28/84 from 20/9
1st number: 2 2/9, 2nd number: 28/84
20/9 - 28/84 is 17/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
28/84 = 28 × 3/84 × 3 = 84/252 - Subtract the two like fractions:
560/252 - 84/252 = 560 - 84/252 = 476/252 - After reducing the fraction, the answer is 17/9
- In mixed form: 18/9
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