Subtract 5/70 from 20/4
1st number: 5 0/4, 2nd number: 5/70
20/4 - 5/70 is 69/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
20/4 = 20 × 35/4 × 35 = 700/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
5/70 = 5 × 2/70 × 2 = 10/140 - Subtract the two like fractions:
700/140 - 10/140 = 700 - 10/140 = 690/140 - After reducing the fraction, the answer is 69/14
- In mixed form: 413/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4-5/70 20/4-10/70 20/8-5/70 60/4-5/70 20/4-15/70 20/12-5/70 20/4-25/70 20/4-35/70 20/28-5/70