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

Add 25/21 and 4/8

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

25/21 + 4/8 is 71/42.

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,
4/8 = 4 × 21/8 × 21 = 84/168
Add the two like fractions:
200/168 + 84/168 = 200 + 84/168 = 284/168
284/168 simplified gives 71/42
So, 25/21 + 4/8 = 71/42
In mixed form: 129/42

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