Subtract 16/70 from 75/20
1st number: 3 15/20, 2nd number: 16/70
75/20 - 16/70 is 493/140.
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,
75/20 = 75 × 7/20 × 7 = 525/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
16/70 = 16 × 2/70 × 2 = 32/140 - Subtract the two like fractions:
525/140 - 32/140 = 525 - 32/140 = 493/140 - In mixed form: 373/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/20-32/70 75/40-16/70 75/20-48/70 75/60-16/70 75/20-80/70