Add 80/72 and 24/70
1st number: 1 8/72, 2nd number: 24/70
80/72 + 24/70 is 458/315.
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,
80/72 = 80 × 35/72 × 35 = 2800/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
24/70 = 24 × 36/70 × 36 = 864/2520 - Add the two like fractions:
2800/2520 + 864/2520 = 2800 + 864/2520 = 3664/2520 - 3664/2520 simplified gives 458/315
- So, 80/72 + 24/70 = 458/315
In mixed form: 1143/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/72+48/70 80/72+72/70