Add 30/27 and 70/42, Solve 1 3/27 + 1 28/42 as a fraction

Add 30/27 and 70/42

1^st number: 1 3/27, 2^nd number: 1 28/42

30/27 + 70/42 is 25/9.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
30/27 = 30 × 14/27 × 14 = 420/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
70/42 = 70 × 9/42 × 9 = 630/378
Add the two like fractions:
420/378 + 630/378 = 420 + 630/378 = 1050/378
1050/378 simplified gives 25/9
So, 30/27 + 70/42 = 25/9
In mixed form: 27/9

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