Subtract 90/27 from 56/7
1st number: 8 0/7, 2nd number: 3 9/27
56/7 - 90/27 is 14/3.
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,
56/7 = 56 × 27/7 × 27 = 1512/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Subtract the two like fractions:
1512/189 - 630/189 = 1512 - 630/189 = 882/189 - After reducing the fraction, the answer is 14/3
- In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/14-90/27 56/7-90/54 56/21-90/27 56/7-90/81 56/35-90/27 56/49-90/27