Add 10/16 and 72/20
1st number: 10/16, 2nd number: 3 12/20
10/16 + 72/20 is 169/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
10/16 = 10 × 5/16 × 5 = 50/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
72/20 = 72 × 4/20 × 4 = 288/80 - Add the two like fractions:
50/80 + 288/80 = 50 + 288/80 = 338/80 - 338/80 simplified gives 169/40
- So, 10/16 + 72/20 = 169/40
In mixed form: 49/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/16+72/20 10/32+72/20 10/16+72/40 30/16+72/20 10/48+72/20 10/16+72/60 50/16+72/20 10/80+72/20 70/16+72/20