Add 70/6 and 21/42
1st number: 11 4/6, 2nd number: 21/42
70/6 + 21/42 is 73/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
70/6 = 70 × 7/6 × 7 = 490/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42 - Add the two like fractions:
490/42 + 21/42 = 490 + 21/42 = 511/42 - 511/42 simplified gives 73/6
- So, 70/6 + 21/42 = 73/6
In mixed form: 121/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12+21/42 70/6+21/84 70/6+63/42 70/18+21/42 70/30+21/42 70/42+21/42