Add 80/60 and 72/64
1st number: 1 20/60, 2nd number: 1 8/64
80/60 + 72/64 is 59/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 64 is 960
Next, find the equivalent fraction of both fractional numbers with denominator 960 - For the 1st fraction, since 60 × 16 = 960,
80/60 = 80 × 16/60 × 16 = 1280/960 - Likewise, for the 2nd fraction, since 64 × 15 = 960,
72/64 = 72 × 15/64 × 15 = 1080/960 - Add the two like fractions:
1280/960 + 1080/960 = 1280 + 1080/960 = 2360/960 - 2360/960 simplified gives 59/24
- So, 80/60 + 72/64 = 59/24
In mixed form: 211/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: