Add 21/35 and 70/10
1st number: 21/35, 2nd number: 7 0/10
21/35 + 70/10 is 38/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
70/10 = 70 × 7/10 × 7 = 490/70 - Add the two like fractions:
42/70 + 490/70 = 42 + 490/70 = 532/70 - 532/70 simplified gives 38/5
- So, 21/35 + 70/10 = 38/5
In mixed form: 73/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+70/10 21/70+70/10 21/35+70/20 63/35+70/10 21/35+70/30 21/35+70/50