Add 72/90 and 3/6
72/90 + 3/6 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
72/90 = 72 × 1/90 × 1 = 72/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
3/6 = 3 × 15/6 × 15 = 45/90 - Add the two like fractions:
72/90 + 45/90 = 72 + 45/90 = 117/90 - 117/90 simplified gives 13/10
- So, 72/90 + 3/6 = 13/10
In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/90+3/12 72/90+9/6 72/90+3/18 72/90+15/6 72/90+3/30 72/90+21/6 72/90+3/42