Answers

Add 54/4 and 81/70

1^st number: 13 2/4, 2^nd number: 1 11/70

54/4 + 81/70 is 513/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 4 × 35 = 140,
   54/4 = 54 × 35/4 × 35 = 1890/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   81/70 = 81 × 2/70 × 2 = 162/140
4. Add the two like fractions:
   1890/140 + 162/140 = 1890 + 162/140 = 2052/140
5. 2052/140 simplified gives 513/35
6. So, 54/4 + 81/70 = 513/35
   In mixed form: 1423/35

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