Add 18/30 and 80/63, Solve 18/30 + 1 17/63 as a fraction

Add 18/30 and 80/63

1^st number: 18/30, 2^nd number: 1 17/63

18/30 + 80/63 is 589/315.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 30 × 21 = 630,
18/30 = 18 × 21/30 × 21 = 378/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
80/63 = 80 × 10/63 × 10 = 800/630
Add the two like fractions:
378/630 + 800/630 = 378 + 800/630 = 1178/630
1178/630 simplified gives 589/315
So, 18/30 + 80/63 = 589/315
In mixed form: 1274/315

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