Answers

Add 2/30 and 72/63

1^st number: 2/30, 2^nd number: 1 9/63

2/30 + 72/63 is 127/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 30 × 21 = 630,
   2/30 = 2 × 21/30 × 21 = 42/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   72/63 = 72 × 10/63 × 10 = 720/630
4. Add the two like fractions:
   42/630 + 720/630 = 42 + 720/630 = 762/630
5. 762/630 simplified gives 127/105
6. So, 2/30 + 72/63 = 127/105
   In mixed form: 122/105

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