Subtract 4/40 from 7/10
7/10 - 4/40 is 3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
7/10 = 7 × 4/10 × 4 = 28/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
4/40 = 4 × 1/40 × 1 = 4/40 - Subtract the two like fractions:
28/40 - 4/40 = 28 - 4/40 = 24/40 - After reducing the fraction, the answer is 3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10-4/40 7/10-8/40 7/20-4/40 7/10-4/80 21/10-4/40 7/10-12/40 7/30-4/40 35/10-4/40 7/10-20/40 7/50-4/40 49/10-4/40 7/10-28/40 7/70-4/40