Subtract 3/8 from 70/40
1st number: 1 30/40, 2nd number: 3/8
70/40 - 3/8 is 11/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
3/8 = 3 × 5/8 × 5 = 15/40 - Subtract the two like fractions:
70/40 - 15/40 = 70 - 15/40 = 55/40 - After reducing the fraction, the answer is 11/8
- In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40-6/8 70/80-3/8 70/40-3/16 70/40-9/8 70/40-3/24 70/40-15/8 70/40-3/40 70/40-21/8 70/40-3/56