Answers

Add 72/18 and 42/75

1^st number: 4 0/18, 2^nd number: 42/75

72/18 + 42/75 is 114/25.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 75 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 18 × 25 = 450,
   72/18 = 72 × 25/18 × 25 = 1800/450
3. Likewise, for the 2nd fraction, since 75 × 6 = 450,
   42/75 = 42 × 6/75 × 6 = 252/450
4. Add the two like fractions:
   1800/450 + 252/450 = 1800 + 252/450 = 2052/450
5. 2052/450 simplified gives 114/25
6. So, 72/18 + 42/75 = 114/25
   In mixed form: 414/25

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