Answers

Add 42/28 and 18/72

1^st number: 1 14/28, 2^nd number: 18/72

42/28 + 18/72 is 7/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 28 × 18 = 504,
   42/28 = 42 × 18/28 × 18 = 756/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   18/72 = 18 × 7/72 × 7 = 126/504
4. Add the two like fractions:
   756/504 + 126/504 = 756 + 126/504 = 882/504
5. 882/504 simplified gives 7/4
6. So, 42/28 + 18/72 = 7/4
   In mixed form: 13/4

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