Answers

Add 72/10 and 70/63

1^st number: 7 2/10, 2^nd number: 1 7/63

72/10 + 70/63 is 374/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 10 × 63 = 630,
   72/10 = 72 × 63/10 × 63 = 4536/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   70/63 = 70 × 10/63 × 10 = 700/630
4. Add the two like fractions:
   4536/630 + 700/630 = 4536 + 700/630 = 5236/630
5. 5236/630 simplified gives 374/45
6. So, 72/10 + 70/63 = 374/45
   In mixed form: 814/45

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