Subtract 49/20 from 70/4
1st number: 17 2/4, 2nd number: 2 9/20
70/4 - 49/20 is 301/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
70/4 = 70 × 5/4 × 5 = 350/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
49/20 = 49 × 1/20 × 1 = 49/20 - Subtract the two like fractions:
350/20 - 49/20 = 350 - 49/20 = 301/20 - In mixed form: 151/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/4-98/20 70/8-49/20 70/4-49/40 70/12-49/20 70/4-49/60 70/20-49/20 70/28-49/20