Add 30/21 and 75/84, Solve 1 9/21 + 75/84 as a fraction

Add 30/21 and 75/84

1^st number: 1 9/21, 2^nd number: 75/84

30/21 + 75/84 is 65/28.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
30/21 = 30 × 4/21 × 4 = 120/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
75/84 = 75 × 1/84 × 1 = 75/84
Add the two like fractions:
120/84 + 75/84 = 120 + 75/84 = 195/84
195/84 simplified gives 65/28
So, 30/21 + 75/84 = 65/28
In mixed form: 29/28

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