Add 27/72 and 70/45
1st number: 27/72, 2nd number: 1 25/45
27/72 + 70/45 is 139/72.
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,
27/72 = 27 × 5/72 × 5 = 135/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
70/45 = 70 × 8/45 × 8 = 560/360 - Add the two like fractions:
135/360 + 560/360 = 135 + 560/360 = 695/360 - 695/360 simplified gives 139/72
- So, 27/72 + 70/45 = 139/72
In mixed form: 167/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72+70/45 27/72+70/90 81/72+70/45