Subtract 9/90 from 25/35
25/35 - 9/90 is 43/70.
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,
25/35 = 25 × 18/35 × 18 = 450/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
9/90 = 9 × 7/90 × 7 = 63/630 - Subtract the two like fractions:
450/630 - 63/630 = 450 - 63/630 = 387/630 - After reducing the fraction, the answer is 43/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/35-9/90 25/35-18/90 25/70-9/90 75/35-9/90 25/35-27/90 25/35-45/90 25/35-63/90