Add 50/42 and 70/90, Solve 1 8/42 + 70/90 as a fraction

Add 50/42 and 70/90

1^st number: 1 8/42, 2^nd number: 70/90

50/42 + 70/90 is 124/63.

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,
50/42 = 50 × 15/42 × 15 = 750/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
70/90 = 70 × 7/90 × 7 = 490/630
Add the two like fractions:
750/630 + 490/630 = 750 + 490/630 = 1240/630
1240/630 simplified gives 124/63
So, 50/42 + 70/90 = 124/63
In mixed form: 161/63

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