Subtract 32/7 from 90/3
1st number: 30 0/3, 2nd number: 4 4/7
90/3 - 32/7 is 178/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
90/3 = 90 × 7/3 × 7 = 630/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
32/7 = 32 × 3/7 × 3 = 96/21 - Subtract the two like fractions:
630/21 - 96/21 = 630 - 96/21 = 534/21 - After reducing the fraction, the answer is 178/7
- In mixed form: 253/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3-64/7 90/6-32/7 90/3-32/14 90/3-96/7 90/9-32/7 90/3-32/21 90/15-32/7 90/3-32/35 90/21-32/7 90/3-32/49