Add 30/18 and 45/28, Solve 1 12/18 + 1 17/28 as a fraction

Add 30/18 and 45/28

1^st number: 1 12/18, 2^nd number: 1 17/28

30/18 + 45/28 is 275/84.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 18 × 14 = 252,
30/18 = 30 × 14/18 × 14 = 420/252
Likewise, for the 2nd fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252
Add the two like fractions:
420/252 + 405/252 = 420 + 405/252 = 825/252
825/252 simplified gives 275/84
So, 30/18 + 45/28 = 275/84
In mixed form: 323/84

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