Answers

Add 50/12 and 42/90

1^st number: 4 2/12, 2^nd number: 42/90

50/12 + 42/90 is 139/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 12 × 15 = 180,
   50/12 = 50 × 15/12 × 15 = 750/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   42/90 = 42 × 2/90 × 2 = 84/180
4. Add the two like fractions:
   750/180 + 84/180 = 750 + 84/180 = 834/180
5. 834/180 simplified gives 139/30
6. So, 50/12 + 42/90 = 139/30
   In mixed form: 419/30

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