Add 9/72 and 84/70
1st number: 9/72, 2nd number: 1 14/70
9/72 + 84/70 is 53/40.
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,
9/72 = 9 × 35/72 × 35 = 315/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
84/70 = 84 × 36/70 × 36 = 3024/2520 - Add the two like fractions:
315/2520 + 3024/2520 = 315 + 3024/2520 = 3339/2520 - 3339/2520 simplified gives 53/40
- So, 9/72 + 84/70 = 53/40
In mixed form: 113/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/72+84/70 27/72+84/70 45/72+84/70 63/72+84/70