Subtract 28/9 from 42/18
1st number: 2 6/18, 2nd number: 3 1/9
42/18 - 28/9 is -7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
42/18 = 42 × 1/18 × 1 = 42/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
28/9 = 28 × 2/9 × 2 = 56/18 - Subtract the two like fractions:
42/18 - 56/18 = 42 - 56/18 = -14/18 - After reducing the fraction, the answer is -7/9
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