Answers

Add 54/42 and 2/20

1^st number: 1 12/42, 2^nd number: 2/20

54/42 + 2/20 is 97/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   54/42 = 54 × 10/42 × 10 = 540/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   2/20 = 2 × 21/20 × 21 = 42/420
4. Add the two like fractions:
   540/420 + 42/420 = 540 + 42/420 = 582/420
5. 582/420 simplified gives 97/70
6. So, 54/42 + 2/20 = 97/70
   In mixed form: 127/70

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