Add 72/60 and 10/80
1st number: 1 12/60, 2nd number: 10/80
72/60 + 10/80 is 53/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 60 × 4 = 240,
72/60 = 72 × 4/60 × 4 = 288/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
10/80 = 10 × 3/80 × 3 = 30/240 - Add the two like fractions:
288/240 + 30/240 = 288 + 30/240 = 318/240 - 318/240 simplified gives 53/40
- So, 72/60 + 10/80 = 53/40
In mixed form: 113/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/60+20/80 72/60+30/80 72/60+50/80 72/60+70/80