Subtract 18/90 from 80/35
1st number: 2 10/35, 2nd number: 18/90
80/35 - 18/90 is 73/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
80/35 = 80 × 18/35 × 18 = 1440/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
18/90 = 18 × 7/90 × 7 = 126/630 - Subtract the two like fractions:
1440/630 - 126/630 = 1440 - 126/630 = 1314/630 - After reducing the fraction, the answer is 73/35
- In mixed form: 23/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/35-36/90 80/70-18/90 80/35-54/90