Subtract 24/30 from 10/40
10/40 - 24/30 is -11/20.
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,
10/40 = 10 × 3/40 × 3 = 30/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
24/30 = 24 × 4/30 × 4 = 96/120 - Subtract the two like fractions:
30/120 - 96/120 = 30 - 96/120 = -66/120 - After reducing the fraction, the answer is -11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40-24/30 10/40-48/30 10/80-24/30 10/40-24/60 30/40-24/30 10/40-72/30 10/40-24/90 50/40-24/30 70/40-24/30