Add 40/4 and 84/72
1st number: 10 0/4, 2nd number: 1 12/72
40/4 + 84/72 is 67/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
40/4 = 40 × 18/4 × 18 = 720/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
84/72 = 84 × 1/72 × 1 = 84/72 - Add the two like fractions:
720/72 + 84/72 = 720 + 84/72 = 804/72 - 804/72 simplified gives 67/6
- So, 40/4 + 84/72 = 67/6
In mixed form: 111/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4+84/72 40/8+84/72 40/12+84/72 40/20+84/72 40/28+84/72