Add 15/54 and 30/7, Solve 15/54 + 4 2/7 as a fraction

Add 15/54 and 30/7

1^st number: 15/54, 2^nd number: 4 2/7

15/54 + 30/7 is 575/126.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378
Likewise, for the 2nd fraction, since 7 × 54 = 378,
30/7 = 30 × 54/7 × 54 = 1620/378
Add the two like fractions:
105/378 + 1620/378 = 105 + 1620/378 = 1725/378
1725/378 simplified gives 575/126
So, 15/54 + 30/7 = 575/126
In mixed form: 471/126

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