Add 70/6 and 18/21, Solve 11 4/6 + 18/21 as a fraction

Add 70/6 and 18/21

1^st number: 11 4/6, 2^nd number: 18/21

70/6 + 18/21 is 263/21.

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,
70/6 = 70 × 7/6 × 7 = 490/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
18/21 = 18 × 2/21 × 2 = 36/42
Add the two like fractions:
490/42 + 36/42 = 490 + 36/42 = 526/42
526/42 simplified gives 263/21
So, 70/6 + 18/21 = 263/21
In mixed form: 1211/21

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