Add 21/6 and 36/42
1st number: 3 3/6, 2nd number: 36/42
21/6 + 36/42 is 61/14.
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,
21/6 = 21 × 7/6 × 7 = 147/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
36/42 = 36 × 1/42 × 1 = 36/42 - Add the two like fractions:
147/42 + 36/42 = 147 + 36/42 = 183/42 - 183/42 simplified gives 61/14
- So, 21/6 + 36/42 = 61/14
In mixed form: 45/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+36/42 21/6+72/42 21/12+36/42 21/6+36/84 63/6+36/42 21/18+36/42 21/30+36/42 21/42+36/42