Subtract 9/70 from 64/20
1st number: 3 4/20, 2nd number: 9/70
64/20 - 9/70 is 43/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
64/20 = 64 × 7/20 × 7 = 448/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
9/70 = 9 × 2/70 × 2 = 18/140 - Subtract the two like fractions:
448/140 - 18/140 = 448 - 18/140 = 430/140 - After reducing the fraction, the answer is 43/14
- In mixed form: 31/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/20-18/70 64/40-9/70 64/20-27/70 64/60-9/70 64/20-45/70 64/20-63/70