Add 18/6 and 8/21
1st number: 3 0/6, 2nd number: 8/21
186 + 821 is 7121.
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,
186 = 18 × 76 × 7 = 12642 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
821 = 8 × 221 × 2 = 1642 - Add the two like fractions:
12642 + 1642 = 126 + 1642 = 14242 - 142/42 simplified gives 7121
- So, 18/6 + 8/21 = 71/21
In mixed form: 3821
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