Answers

Add 70/20 and 49/54

1^st number: 3 10/20, 2^nd number: 49/54

70/20 + 49/54 is 119/27.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   70/20 = 70 × 27/20 × 27 = 1890/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   49/54 = 49 × 10/54 × 10 = 490/540
4. Add the two like fractions:
   1890/540 + 490/540 = 1890 + 490/540 = 2380/540
5. 2380/540 simplified gives 119/27
6. So, 70/20 + 49/54 = 119/27
   In mixed form: 411/27

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