Subtract 28/9 from 35/21
1st number: 1 14/21, 2nd number: 3 1/9
35/21 - 28/9 is -13/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
35/21 = 35 × 3/21 × 3 = 105/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
28/9 = 28 × 7/9 × 7 = 196/63 - Subtract the two like fractions:
105/63 - 196/63 = 105 - 196/63 = -91/63 - After reducing the fraction, the answer is -13/9
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