Add 3/42 and 75/45, Solve 3/42 + 1 30/45 as a fraction

Add 3/42 and 75/45

1^st number: 3/42, 2^nd number: 1 30/45

3/42 + 75/45 is 73/42.

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,
3/42 = 3 × 15/42 × 15 = 45/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
75/45 = 75 × 14/45 × 14 = 1050/630
Add the two like fractions:
45/630 + 1050/630 = 45 + 1050/630 = 1095/630
1095/630 simplified gives 73/42
So, 3/42 + 75/45 = 73/42
In mixed form: 131/42

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