Add 72/10 and 80/16
1st number: 7 2/10, 2nd number: 5 0/16
72/10 + 80/16 is 61/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
72/10 = 72 × 8/10 × 8 = 576/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
80/16 = 80 × 5/16 × 5 = 400/80 - Add the two like fractions:
576/80 + 400/80 = 576 + 400/80 = 976/80 - 976/80 simplified gives 61/5
- So, 72/10 + 80/16 = 61/5
In mixed form: 121/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20+80/16 72/10+80/32 72/30+80/16 72/10+80/48 72/50+80/16 72/70+80/16