Subtract 90/60 from 35/40
1st number: 35/40, 2nd number: 1 30/60
35/40 - 90/60 is -5/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
35/40 = 35 × 3/40 × 3 = 105/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
90/60 = 90 × 2/60 × 2 = 180/120 - Subtract the two like fractions:
105/120 - 180/120 = 105 - 180/120 = -75/120 - After reducing the fraction, the answer is -5/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-90/60 35/80-90/60