Add 72/80 and 63/60
1st number: 72/80, 2nd number: 1 3/60
72/80 + 63/60 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
72/80 = 72 × 3/80 × 3 = 216/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
63/60 = 63 × 4/60 × 4 = 252/240 - Add the two like fractions:
216/240 + 252/240 = 216 + 252/240 = 468/240 - 468/240 simplified gives 39/20
- So, 72/80 + 63/60 = 39/20
In mixed form: 119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: