Subtract 1/90 from 9/35
9/35 - 1/90 is 31/126.
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,
9/35 = 9 × 18/35 × 18 = 162/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
1/90 = 1 × 7/90 × 7 = 7/630 - Subtract the two like fractions:
162/630 - 7/630 = 162 - 7/630 = 155/630 - After reducing the fraction, the answer is 31/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/35-1/90 9/35-2/90 9/70-1/90 27/35-1/90 9/35-3/90 45/35-1/90 9/35-5/90 63/35-1/90 9/35-7/90