Add 30/7 and 70/30, Solve 4 2/7 + 2 10/30 as a fraction

Add 30/7 and 70/30

1^st number: 4 2/7, 2^nd number: 2 10/30

30/7 + 70/30 is 139/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 7 × 30 = 210,
30/7 = 30 × 30/7 × 30 = 900/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210
Add the two like fractions:
900/210 + 490/210 = 900 + 490/210 = 1390/210
1390/210 simplified gives 139/21
So, 30/7 + 70/30 = 139/21
In mixed form: 613/21

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