Answers

Add 70/4 and 72/20

1^st number: 17 2/4, 2^nd number: 3 12/20

70/4 + 72/20 is 211/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 20 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 4 × 5 = 20,
   70/4 = 70 × 5/4 × 5 = 350/20
3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
   72/20 = 72 × 1/20 × 1 = 72/20
4. Add the two like fractions:
   350/20 + 72/20 = 350 + 72/20 = 422/20
5. 422/20 simplified gives 211/10
6. So, 70/4 + 72/20 = 211/10
   In mixed form: 211/10

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