Answers

Add 70/10 and 90/20

1^st number: 7 0/10, 2^nd number: 4 10/20

70/10 + 90/20 is 23/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 20 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 10 × 2 = 20,
   70/10 = 70 × 2/10 × 2 = 140/20
3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
   90/20 = 90 × 1/20 × 1 = 90/20
4. Add the two like fractions:
   140/20 + 90/20 = 140 + 90/20 = 230/20
5. 230/20 simplified gives 23/2
6. So, 70/10 + 90/20 = 23/2
   In mixed form: 111/2

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