Add 9/72 and 70/45
1st number: 9/72, 2nd number: 1 25/45
9/72 + 70/45 is 121/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
70/45 = 70 × 8/45 × 8 = 560/360 - Add the two like fractions:
45/360 + 560/360 = 45 + 560/360 = 605/360 - 605/360 simplified gives 121/72
- So, 9/72 + 70/45 = 121/72
In mixed form: 149/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/72+70/45 9/72+70/90 27/72+70/45 45/72+70/45 63/72+70/45