Add 72/30 and 27/72
1st number: 2 12/30, 2nd number: 27/72
72/30 + 27/72 is 111/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
72/30 = 72 × 12/30 × 12 = 864/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
27/72 = 27 × 5/72 × 5 = 135/360 - Add the two like fractions:
864/360 + 135/360 = 864 + 135/360 = 999/360 - 999/360 simplified gives 111/40
- So, 72/30 + 27/72 = 111/40
In mixed form: 231/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30+54/72 72/60+27/72 72/30+81/72 72/90+27/72