Add 70/60 and 15/72
1st number: 1 10/60, 2nd number: 15/72
70/60 + 15/72 is 11/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 60 × 6 = 360,
70/60 = 70 × 6/60 × 6 = 420/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Add the two like fractions:
420/360 + 75/360 = 420 + 75/360 = 495/360 - 495/360 simplified gives 11/8
- So, 70/60 + 15/72 = 11/8
In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60+30/72 70/60+45/72 70/60+75/72