Subtract 3/16 from 30/20
1st number: 1 10/20, 2nd number: 3/16
30/20 - 3/16 is 21/16.
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,
30/20 = 30 × 4/20 × 4 = 120/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
3/16 = 3 × 5/16 × 5 = 15/80 - Subtract the two like fractions:
120/80 - 15/80 = 120 - 15/80 = 105/80 - After reducing the fraction, the answer is 21/16
- In mixed form: 15/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20-3/16 30/20-6/16 30/40-3/16 30/20-3/32 90/20-3/16 30/20-9/16 30/60-3/16 30/20-3/48 30/20-15/16 30/20-3/80 30/20-21/16