Answers

Add 50/42 and 4/90

1^st number: 1 8/42, 2^nd number: 4/90

50/42 + 4/90 is 389/315.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 42 × 15 = 630,
   50/42 = 50 × 15/42 × 15 = 750/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   4/90 = 4 × 7/90 × 7 = 28/630
4. Add the two like fractions:
   750/630 + 28/630 = 750 + 28/630 = 778/630
5. 778/630 simplified gives 389/315
6. So, 50/42 + 4/90 = 389/315
   In mixed form: 174/315

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