Add 25/70 and 21/3
1st number: 25/70, 2nd number: 7 0/3
25/70 + 21/3 is 103/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
25/70 = 25 × 3/70 × 3 = 75/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
21/3 = 21 × 70/3 × 70 = 1470/210 - Add the two like fractions:
75/210 + 1470/210 = 75 + 1470/210 = 1545/210 - 1545/210 simplified gives 103/14
- So, 25/70 + 21/3 = 103/14
In mixed form: 75/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70+21/3 25/70+42/3 25/70+21/6 75/70+21/3 25/70+63/3 25/70+21/9 25/70+21/15