Add 70/42 and 21/6, Solve 1 28/42 + 3 3/6 as a fraction

Add 70/42 and 21/6

1^st number: 1 28/42, 2^nd number: 3 3/6

70/42 + 21/6 is 31/6.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 6 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 42 × 1 = 42,
70/42 = 70 × 1/42 × 1 = 70/42
Likewise, for the 2nd fraction, since 6 × 7 = 42,
21/6 = 21 × 7/6 × 7 = 147/42
Add the two like fractions:
70/42 + 147/42 = 70 + 147/42 = 217/42
217/42 simplified gives 31/6
So, 70/42 + 21/6 = 31/6
In mixed form: 51/6

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