Add 75/42 and 4/90, Solve 1 33/42 + 4/90 as a fraction

Add 75/42 and 4/90

1^st number: 1 33/42, 2^nd number: 4/90

75/42 + 4/90 is 1153/630.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
75/42 = 75 × 15/42 × 15 = 1125/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
4/90 = 4 × 7/90 × 7 = 28/630
Add the two like fractions:
1125/630 + 28/630 = 1125 + 28/630 = 1153/630
So, 75/42 + 4/90 = 1153/630
In mixed form: 1523/630

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