Subtract 42/27 from 35/7
1st number: 5 0/7, 2nd number: 1 15/27
35/7 - 42/27 is 31/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
35/7 = 35 × 27/7 × 27 = 945/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
42/27 = 42 × 7/27 × 7 = 294/189 - Subtract the two like fractions:
945/189 - 294/189 = 945 - 294/189 = 651/189 - After reducing the fraction, the answer is 31/9
- In mixed form: 34/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/7-42/27 35/7-84/27 35/14-42/27 35/7-42/54 35/21-42/27 35/7-42/81 35/49-42/27