Subtract 10/30 from 25/40
25/40 - 10/30 is 7/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
25/40 = 25 × 3/40 × 3 = 75/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
10/30 = 10 × 4/30 × 4 = 40/120 - Subtract the two like fractions:
75/120 - 40/120 = 75 - 40/120 = 35/120 - After reducing the fraction, the answer is 7/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/40-10/30 25/40-20/30 25/80-10/30 25/40-10/60 75/40-10/30 25/40-10/90 25/40-50/30 25/40-70/30