Subtract 30/81 from 60/30
1st number: 2 0/30, 2nd number: 30/81
60/30 - 30/81 is 44/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
60/30 = 60 × 27/30 × 27 = 1620/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
30/81 = 30 × 10/81 × 10 = 300/810 - Subtract the two like fractions:
1620/810 - 300/810 = 1620 - 300/810 = 1320/810 - After reducing the fraction, the answer is 44/27
- In mixed form: 117/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/30-60/81 60/30-90/81 60/90-30/81