Subtract 21/5 from 70/16
1st number: 4 6/16, 2nd number: 4 1/5
70/16 - 21/5 is 7/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
70/16 = 70 × 5/16 × 5 = 350/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80 - Subtract the two like fractions:
350/80 - 336/80 = 350 - 336/80 = 14/80 - After reducing the fraction, the answer is 7/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/16-42/5 70/32-21/5 70/16-21/10 70/16-63/5 70/48-21/5 70/16-21/15 70/80-21/5 70/16-21/25 70/16-21/35