Add 72/45 and 75/42, Solve 1 27/45 + 1 33/42 as a fraction

Add 72/45 and 75/42

1^st number: 1 27/45, 2^nd number: 1 33/42

72/45 + 75/42 is 237/70.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
72/45 = 72 × 14/45 × 14 = 1008/630
Likewise, for the 2nd fraction, since 42 × 15 = 630,
75/42 = 75 × 15/42 × 15 = 1125/630
Add the two like fractions:
1008/630 + 1125/630 = 1008 + 1125/630 = 2133/630
2133/630 simplified gives 237/70
So, 72/45 + 75/42 = 237/70
In mixed form: 327/70

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