Add 70/6 and 90/12, Solve 11 4/6 + 7 6/12 as a fraction

Add 70/6 and 90/12

1^st number: 11 4/6, 2^nd number: 7 6/12

70/6 + 90/12 is 115/6.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12

Next, find the equivalent fraction of both fractional numbers with denominator 12
For the 1st fraction, since 6 × 2 = 12,
70/6 = 70 × 2/6 × 2 = 140/12
Likewise, for the 2nd fraction, since 12 × 1 = 12,
90/12 = 90 × 1/12 × 1 = 90/12
Add the two like fractions:
140/12 + 90/12 = 140 + 90/12 = 230/12
230/12 simplified gives 115/6
So, 70/6 + 90/12 = 115/6
In mixed form: 191/6

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