Answers

Add 20/9 and 56/70

1^st number: 2 2/9, 2^nd number: 56/70

20/9 + 56/70 is 136/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 9 × 70 = 630,
   20/9 = 20 × 70/9 × 70 = 1400/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   56/70 = 56 × 9/70 × 9 = 504/630
4. Add the two like fractions:
   1400/630 + 504/630 = 1400 + 504/630 = 1904/630
5. 1904/630 simplified gives 136/45
6. So, 20/9 + 56/70 = 136/45
   In mixed form: 31/45

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