Add 28/10 and 2/72
1st number: 2 8/10, 2nd number: 2/72
28/10 + 2/72 is 509/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
28/10 = 28 × 36/10 × 36 = 1008/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
2/72 = 2 × 5/72 × 5 = 10/360 - Add the two like fractions:
1008/360 + 10/360 = 1008 + 10/360 = 1018/360 - 1018/360 simplified gives 509/180
- So, 28/10 + 2/72 = 509/180
In mixed form: 2149/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+2/72 28/10+4/72 28/20+2/72 84/10+2/72 28/10+6/72 28/30+2/72 28/10+10/72 28/50+2/72 28/10+14/72 28/70+2/72