Answers

Add 16/63 and 81/70

1^st number: 16/63, 2^nd number: 1 11/70

16/63 + 81/70 is 127/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 63 × 10 = 630,
   16/63 = 16 × 10/63 × 10 = 160/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   81/70 = 81 × 9/70 × 9 = 729/630
4. Add the two like fractions:
   160/630 + 729/630 = 160 + 729/630 = 889/630
5. 889/630 simplified gives 127/90
6. So, 16/63 + 81/70 = 127/90
   In mixed form: 137/90

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