Subtract 1/80 from 35/90
35/90 - 1/80 is 271/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
35/90 = 35 × 8/90 × 8 = 280/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
1/80 = 1 × 9/80 × 9 = 9/720 - Subtract the two like fractions:
280/720 - 9/720 = 280 - 9/720 = 271/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90-1/80 35/90-2/80 35/90-3/80 35/90-5/80 35/90-7/80