Add 80/42 and 3/45, Solve 1 38/42 + 3/45 as a fraction

Add 80/42 and 3/45

1^st number: 1 38/42, 2^nd number: 3/45

80/42 + 3/45 is 69/35.

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,
3/45 = 3 × 14/45 × 14 = 42/630
Add the two like fractions:
1200/630 + 42/630 = 1200 + 42/630 = 1242/630
1242/630 simplified gives 69/35
So, 80/42 + 3/45 = 69/35
In mixed form: 134/35

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