Add 10/72 and 21/10
1st number: 10/72, 2nd number: 2 1/10
10/72 + 21/10 is 403/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 10 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
10/72 = 10 × 5/72 × 5 = 50/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
21/10 = 21 × 36/10 × 36 = 756/360 - Add the two like fractions:
50/360 + 756/360 = 50 + 756/360 = 806/360 - 806/360 simplified gives 403/180
- So, 10/72 + 21/10 = 403/180
In mixed form: 243/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/72+21/10 10/72+42/10 10/72+21/20 30/72+21/10 10/72+63/10 10/72+21/30 50/72+21/10 10/72+21/50 70/72+21/10 10/72+21/70