Subtract 25/18 from 40/35
1st number: 1 5/35, 2nd number: 1 7/18
40/35 - 25/18 is -31/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
40/35 = 40 × 18/35 × 18 = 720/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
25/18 = 25 × 35/18 × 35 = 875/630 - Subtract the two like fractions:
720/630 - 875/630 = 720 - 875/630 = -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: 80/35-25/18 40/35-50/18 40/70-25/18 40/35-25/36 40/35-75/18 40/35-25/54 40/35-25/90