Subtract 30/16 from 15/5
1st number: 3 0/5, 2nd number: 1 14/16
15/5 - 30/16 is 9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
15/5 = 15 × 16/5 × 16 = 240/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
30/16 = 30 × 5/16 × 5 = 150/80 - Subtract the two like fractions:
240/80 - 150/80 = 240 - 150/80 = 90/80 - After reducing the fraction, the answer is 9/8
- In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/5-30/16 15/5-60/16 15/10-30/16 15/5-30/32 45/5-30/16 15/5-90/16 15/5-30/48 75/5-30/16 15/25-30/16 15/5-30/80 15/35-30/16