Add 70/72 and 80/70
1st number: 70/72, 2nd number: 1 10/70
70/72 + 80/70 is 533/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
70/72 = 70 × 35/72 × 35 = 2450/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
80/70 = 80 × 36/70 × 36 = 2880/2520 - Add the two like fractions:
2450/2520 + 2880/2520 = 2450 + 2880/2520 = 5330/2520 - 5330/2520 simplified gives 533/252
- So, 70/72 + 80/70 = 533/252
In mixed form: 229/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: