Subtract 60/80 from 30/5
1st number: 6 0/5, 2nd number: 60/80
30/5 - 60/80 is 21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
30/5 = 30 × 16/5 × 16 = 480/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
60/80 = 60 × 1/80 × 1 = 60/80 - Subtract the two like fractions:
480/80 - 60/80 = 480 - 60/80 = 420/80 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/5-60/80 30/10-60/80 90/5-60/80 30/15-60/80 30/25-60/80 30/35-60/80