Subtract 4/35 from 4/40
4/40 - 4/35 is -1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
4/40 = 4 × 7/40 × 7 = 28/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
4/35 = 4 × 8/35 × 8 = 32/280 - Subtract the two like fractions:
28/280 - 32/280 = 28 - 32/280 = -4/280 - After reducing the fraction, the answer is -1/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/40-4/35 4/40-8/35 4/80-4/35 4/40-4/70 12/40-4/35 4/40-12/35 20/40-4/35 4/40-20/35 28/40-4/35 4/40-28/35