Add 70/45 and 81/24
1st number: 1 25/45, 2nd number: 3 9/24
70/45 + 81/24 is 355/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
70/45 = 70 × 8/45 × 8 = 560/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
81/24 = 81 × 15/24 × 15 = 1215/360 - Add the two like fractions:
560/360 + 1215/360 = 560 + 1215/360 = 1775/360 - 1775/360 simplified gives 355/72
- So, 70/45 + 81/24 = 355/72
In mixed form: 467/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+81/24 70/45+81/48 70/45+81/72