Subtract 20/4 from 28/9
1st number: 3 1/9, 2nd number: 5 0/4
28/9 - 20/4 is -17/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
28/9 = 28 × 4/9 × 4 = 112/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
20/4 = 20 × 9/4 × 9 = 180/36 - Subtract the two like fractions:
112/36 - 180/36 = 112 - 180/36 = -68/36 - After reducing the fraction, the answer is -17/9
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