Answers

Add 70/4 and 54/80

1^st number: 17 2/4, 2^nd number: 54/80

70/4 + 54/80 is 727/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 4 × 20 = 80,
   70/4 = 70 × 20/4 × 20 = 1400/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   54/80 = 54 × 1/80 × 1 = 54/80
4. Add the two like fractions:
   1400/80 + 54/80 = 1400 + 54/80 = 1454/80
5. 1454/80 simplified gives 727/40
6. So, 70/4 + 54/80 = 727/40
   In mixed form: 187/40

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