Subtract 21/27 from 42/9
1st number: 4 6/9, 2nd number: 21/27
42/9 - 21/27 is 35/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 9 × 3 = 27,
42/9 = 42 × 3/9 × 3 = 126/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
21/27 = 21 × 1/27 × 1 = 21/27 - Subtract the two like fractions:
126/27 - 21/27 = 126 - 21/27 = 105/27 - After reducing the fraction, the answer is 35/9
- In mixed form: 38/9
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