Add 10/70 and 9/72
10/70 + 9/72 is 15/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
10/70 = 10 × 36/70 × 36 = 360/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
9/72 = 9 × 35/72 × 35 = 315/2520 - Add the two like fractions:
360/2520 + 315/2520 = 360 + 315/2520 = 675/2520 - 675/2520 simplified gives 15/56
- So, 10/70 + 9/72 = 15/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/70+9/72 10/70+18/72 30/70+9/72 10/70+27/72 50/70+9/72 10/70+45/72 10/70+63/72