Subtract 80/35 from 90/5
1st number: 18 0/5, 2nd number: 2 10/35
90/5 - 80/35 is 110/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 35 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
90/5 = 90 × 7/5 × 7 = 630/35 - Likewise, for the 2nd fraction, since 35 × 1 = 35,
80/35 = 80 × 1/35 × 1 = 80/35 - Subtract the two like fractions:
630/35 - 80/35 = 630 - 80/35 = 550/35 - After reducing the fraction, the answer is 110/7
- In mixed form: 155/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10-80/35 90/5-80/70 90/15-80/35 90/25-80/35 90/35-80/35