Answers

Add 42/49 and 48/20

1^st number: 42/49, 2^nd number: 2 8/20

42/49 + 48/20 is 114/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 49 × 20 = 980,
   42/49 = 42 × 20/49 × 20 = 840/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   48/20 = 48 × 49/20 × 49 = 2352/980
4. Add the two like fractions:
   840/980 + 2352/980 = 840 + 2352/980 = 3192/980
5. 3192/980 simplified gives 114/35
6. So, 42/49 + 48/20 = 114/35
   In mixed form: 39/35

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