Subtract 84/80 from 30/8
1st number: 3 6/8, 2nd number: 1 4/80
30/8 - 84/80 is 27/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
30/8 = 30 × 10/8 × 10 = 300/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
84/80 = 84 × 1/80 × 1 = 84/80 - Subtract the two like fractions:
300/80 - 84/80 = 300 - 84/80 = 216/80 - After reducing the fraction, the answer is 27/10
- In mixed form: 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8-84/80 30/16-84/80 90/8-84/80 30/24-84/80 30/40-84/80 30/56-84/80