Subtract 24/40 from 3/35
3/35 - 24/40 is -18/35.
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,
3/35 = 3 × 8/35 × 8 = 24/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
24/40 = 24 × 7/40 × 7 = 168/280 - Subtract the two like fractions:
24/280 - 168/280 = 24 - 168/280 = -144/280 - After reducing the fraction, the answer is -18/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/35-24/40 3/35-48/40 3/70-24/40 3/35-24/80 9/35-24/40 3/35-72/40 15/35-24/40 21/35-24/40