Add 72/80 and 30/5
1st number: 72/80, 2nd number: 6 0/5
72/80 + 30/5 is 69/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
72/80 = 72 × 1/80 × 1 = 72/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
30/5 = 30 × 16/5 × 16 = 480/80 - Add the two like fractions:
72/80 + 480/80 = 72 + 480/80 = 552/80 - 552/80 simplified gives 69/10
- So, 72/80 + 30/5 = 69/10
In mixed form: 69/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/80+60/5 72/80+30/10 72/80+90/5 72/80+30/15 72/80+30/25 72/80+30/35