Add 25/21 and 30/8, Solve 1 4/21 + 3 6/8 as a fraction

Add 25/21 and 30/8

1^st number: 1 4/21, 2^nd number: 3 6/8

25/21 + 30/8 is 415/84.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 21 × 8 = 168,
25/21 = 25 × 8/21 × 8 = 200/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
30/8 = 30 × 21/8 × 21 = 630/168
Add the two like fractions:
200/168 + 630/168 = 200 + 630/168 = 830/168
830/168 simplified gives 415/84
So, 25/21 + 30/8 = 415/84
In mixed form: 479/84

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