Answers

Add 50/42 and 40/72

1^st number: 1 8/42, 2^nd number: 40/72

50/42 + 40/72 is 110/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   50/42 = 50 × 12/42 × 12 = 600/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   40/72 = 40 × 7/72 × 7 = 280/504
4. Add the two like fractions:
   600/504 + 280/504 = 600 + 280/504 = 880/504
5. 880/504 simplified gives 110/63
6. So, 50/42 + 40/72 = 110/63
   In mixed form: 147/63

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