Add 70/21 and 4/8, Solve 3 7/21 + 4/8 as a fraction

Add 70/21 and 4/8

1^st number: 3 7/21, 2^nd number: 4/8

70/21 + 4/8 is 23/6.

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,
70/21 = 70 × 8/21 × 8 = 560/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
4/8 = 4 × 21/8 × 21 = 84/168
Add the two like fractions:
560/168 + 84/168 = 560 + 84/168 = 644/168
644/168 simplified gives 23/6
So, 70/21 + 4/8 = 23/6
In mixed form: 35/6

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