Add 72/10 and 84/72
1st number: 7 2/10, 2nd number: 1 12/72
72/10 + 84/72 is 251/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
72/10 = 72 × 36/10 × 36 = 2592/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Add the two like fractions:
2592/360 + 420/360 = 2592 + 420/360 = 3012/360 - 3012/360 simplified gives 251/30
- So, 72/10 + 84/72 = 251/30
In mixed form: 811/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20+84/72 72/30+84/72 72/50+84/72 72/70+84/72