Subtract 5/40 from 90/35
1st number: 2 20/35, 2nd number: 5/40
90/35 - 5/40 is 137/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
90/35 = 90 × 8/35 × 8 = 720/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
5/40 = 5 × 7/40 × 7 = 35/280 - Subtract the two like fractions:
720/280 - 35/280 = 720 - 35/280 = 685/280 - After reducing the fraction, the answer is 137/56
- In mixed form: 225/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/35-10/40 90/70-5/40 90/35-5/80 90/35-15/40 90/35-25/40 90/35-35/40