Add 21/35 and 45/7
1st number: 21/35, 2nd number: 6 3/7
21/35 + 45/7 is 246/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 35 × 1 = 35,
21/35 = 21 × 1/35 × 1 = 21/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
45/7 = 45 × 5/7 × 5 = 225/35 - Add the two like fractions:
21/35 + 225/35 = 21 + 225/35 = 246/35 - So, 21/35 + 45/7 = 246/35
In mixed form: 71/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+45/7 21/35+90/7 21/70+45/7 21/35+45/14 63/35+45/7 21/35+45/21 21/35+45/35 21/35+45/49