Add 30/7 and 72/9, Solve 4 2/7 + 8 0/9 as a fraction

Add 30/7 and 72/9

1^st number: 4 2/7, 2^nd number: 8 0/9

30/7 + 72/9 is 86/7.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
30/7 = 30 × 9/7 × 9 = 270/63
Likewise, for the 2nd fraction, since 9 × 7 = 63,
72/9 = 72 × 7/9 × 7 = 504/63
Add the two like fractions:
270/63 + 504/63 = 270 + 504/63 = 774/63
774/63 simplified gives 86/7
So, 30/7 + 72/9 = 86/7
In mixed form: 122/7

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