Add 70/28 and 15/25
1st number: 2 14/28, 2nd number: 15/25
70/28 + 15/25 is 31/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 25 is 700
Next, find the equivalent fraction of both fractional numbers with denominator 700 - For the 1st fraction, since 28 × 25 = 700,
70/28 = 70 × 25/28 × 25 = 1750/700 - Likewise, for the 2nd fraction, since 25 × 28 = 700,
15/25 = 15 × 28/25 × 28 = 420/700 - Add the two like fractions:
1750/700 + 420/700 = 1750 + 420/700 = 2170/700 - 2170/700 simplified gives 31/10
- So, 70/28 + 15/25 = 31/10
In mixed form: 31/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+30/25 70/56+15/25 70/28+15/50 70/28+45/25 70/84+15/25 70/28+15/75 70/28+75/25