Add 40/9 and 84/72
1st number: 4 4/9, 2nd number: 1 12/72
40/9 + 84/72 is 101/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
40/9 = 40 × 8/9 × 8 = 320/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
84/72 = 84 × 1/72 × 1 = 84/72 - Add the two like fractions:
320/72 + 84/72 = 320 + 84/72 = 404/72 - 404/72 simplified gives 101/18
- So, 40/9 + 84/72 = 101/18
In mixed form: 511/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/9+84/72 40/18+84/72 40/27+84/72 40/45+84/72 40/63+84/72