Subtract 25/16 from 70/20
1st number: 3 10/20, 2nd number: 1 9/16
70/20 - 25/16 is 31/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
70/20 = 70 × 4/20 × 4 = 280/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
25/16 = 25 × 5/16 × 5 = 125/80 - Subtract the two like fractions:
280/80 - 125/80 = 280 - 125/80 = 155/80 - After reducing the fraction, the answer is 31/16
- In mixed form: 115/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-50/16 70/40-25/16 70/20-25/32 70/20-75/16 70/60-25/16 70/20-25/48 70/20-25/80