Answers

Add 30/18 and 72/70

1^st number: 1 12/18, 2^nd number: 1 2/70

30/18 + 72/70 is 283/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 18 × 35 = 630,
   30/18 = 30 × 35/18 × 35 = 1050/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   72/70 = 72 × 9/70 × 9 = 648/630
4. Add the two like fractions:
   1050/630 + 648/630 = 1050 + 648/630 = 1698/630
5. 1698/630 simplified gives 283/105
6. So, 30/18 + 72/70 = 283/105
   In mixed form: 273/105

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