Add 9/2 and 70/21, Solve 4 1/2 + 3 7/21 as a fraction

Add 9/2 and 70/21

1^st number: 4 1/2, 2^nd number: 3 7/21

9/2 + 70/21 is 47/6.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
9/2 = 9 × 21/2 × 21 = 189/42
Likewise, for the 2nd fraction, since 21 × 2 = 42,
70/21 = 70 × 2/21 × 2 = 140/42
Add the two like fractions:
189/42 + 140/42 = 189 + 140/42 = 329/42
329/42 simplified gives 47/6
So, 9/2 + 70/21 = 47/6
In mixed form: 75/6

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