Add 70/72 and 28/10
1st number: 70/72, 2nd number: 2 8/10
70/72 + 28/10 is 679/180.
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,
70/72 = 70 × 5/72 × 5 = 350/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
28/10 = 28 × 36/10 × 36 = 1008/360 - Add the two like fractions:
350/360 + 1008/360 = 350 + 1008/360 = 1358/360 - 1358/360 simplified gives 679/180
- So, 70/72 + 28/10 = 679/180
In mixed form: 3139/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+56/10 70/72+28/20 70/72+84/10 70/72+28/30 70/72+28/50 70/72+28/70