Answers

Add 90/8 and 42/72

1^st number: 11 2/8, 2^nd number: 42/72

90/8 + 42/72 is 71/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 8 × 9 = 72,
   90/8 = 90 × 9/8 × 9 = 810/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   42/72 = 42 × 1/72 × 1 = 42/72
4. Add the two like fractions:
   810/72 + 42/72 = 810 + 42/72 = 852/72
5. 852/72 simplified gives 71/6
6. So, 90/8 + 42/72 = 71/6
   In mixed form: 115/6

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