Answers

Add 30/10 and 72/18

1^st number: 3 0/10, 2^nd number: 4 0/18

30/10 + 72/18 is 7/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 10 × 9 = 90,
   30/10 = 30 × 9/10 × 9 = 270/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   72/18 = 72 × 5/18 × 5 = 360/90
4. Add the two like fractions:
   270/90 + 360/90 = 270 + 360/90 = 630/90
5. 630/90 simplified gives 7/1
6. So, 30/10 + 72/18 = 7/1

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