Add 45/24 and 70/81
1st number: 1 21/24, 2nd number: 70/81
45/24 + 70/81 is 1775/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 24 × 27 = 648,
45/24 = 45 × 27/24 × 27 = 1215/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
70/81 = 70 × 8/81 × 8 = 560/648 - Add the two like fractions:
1215/648 + 560/648 = 1215 + 560/648 = 1775/648 - So, 45/24 + 70/81 = 1775/648
In mixed form: 2479/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24+70/81 45/48+70/81 45/72+70/81