Subtract 30/81 from 24/8
1st number: 3 0/8, 2nd number: 30/81
24/8 - 30/81 is 71/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
24/8 = 24 × 81/8 × 81 = 1944/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
30/81 = 30 × 8/81 × 8 = 240/648 - Subtract the two like fractions:
1944/648 - 240/648 = 1944 - 240/648 = 1704/648 - After reducing the fraction, the answer is 71/27
- In mixed form: 217/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/8-30/81 24/8-60/81 24/16-30/81 72/8-30/81 24/8-90/81 24/40-30/81 24/56-30/81