Add 80/42 and 80/45, Solve 1 38/42 + 1 35/45 as a fraction

Add 80/42 and 80/45

1^st number: 1 38/42, 2^nd number: 1 35/45

80/42 + 80/45 is 232/63.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
80/42 = 80 × 15/42 × 15 = 1200/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
80/45 = 80 × 14/45 × 14 = 1120/630
Add the two like fractions:
1200/630 + 1120/630 = 1200 + 1120/630 = 2320/630
2320/630 simplified gives 232/63
So, 80/42 + 80/45 = 232/63
In mixed form: 343/63

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