Add 21/6 and 15/21
1st number: 3 3/6, 2nd number: 15/21
216 + 1521 is 5914.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
216 = 21 × 76 × 7 = 14742 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
1521 = 15 × 221 × 2 = 3042 - Add the two like fractions:
14742 + 3042 = 147 + 3042 = 17742 - 177/42 simplified gives 5914
- So, 21/6 + 15/21 = 59/14
In mixed form: 4314
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