Answers

Add 42/56 and 84/20

1^st number: 42/56, 2^nd number: 4 4/20

42/56 + 84/20 is 99/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 20 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   42/56 = 42 × 5/56 × 5 = 210/280
3. Likewise, for the 2nd fraction, since 20 × 14 = 280,
   84/20 = 84 × 14/20 × 14 = 1176/280
4. Add the two like fractions:
   210/280 + 1176/280 = 210 + 1176/280 = 1386/280
5. 1386/280 simplified gives 99/20
6. So, 42/56 + 84/20 = 99/20
   In mixed form: 419/20

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