Subtract 70/40 from 20/2
1st number: 10 0/2, 2nd number: 1 30/40
20/2 - 70/40 is 33/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
20/2 = 20 × 20/2 × 20 = 400/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Subtract the two like fractions:
400/40 - 70/40 = 400 - 70/40 = 330/40 - After reducing the fraction, the answer is 33/4
- In mixed form: 81/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2-70/40 20/4-70/40 20/2-70/80 60/2-70/40 20/6-70/40 20/10-70/40 20/14-70/40