Subtract 30/81 from 48/30
1st number: 1 18/30, 2nd number: 30/81
48/30 - 30/81 is 166/135.
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,
48/30 = 48 × 27/30 × 27 = 1296/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
30/81 = 30 × 10/81 × 10 = 300/810 - Subtract the two like fractions:
1296/810 - 300/810 = 1296 - 300/810 = 996/810 - After reducing the fraction, the answer is 166/135
- In mixed form: 131/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/30-30/81 48/30-60/81 48/60-30/81 48/30-90/81 48/90-30/81