Answers

Add 70/54 and 20/25

1^st number: 1 16/54, 2^nd number: 20/25

70/54 + 20/25 is 283/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 25 is 1350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1350
2. For the 1st fraction, since 54 × 25 = 1350,
   70/54 = 70 × 25/54 × 25 = 1750/1350
3. Likewise, for the 2nd fraction, since 25 × 54 = 1350,
   20/25 = 20 × 54/25 × 54 = 1080/1350
4. Add the two like fractions:
   1750/1350 + 1080/1350 = 1750 + 1080/1350 = 2830/1350
5. 2830/1350 simplified gives 283/135
6. So, 70/54 + 20/25 = 283/135
   In mixed form: 213/135

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