Answers

Add 84/56 and 90/40

1^st number: 1 28/56, 2^nd number: 2 10/40

84/56 + 90/40 is 15/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   84/56 = 84 × 5/56 × 5 = 420/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   90/40 = 90 × 7/40 × 7 = 630/280
4. Add the two like fractions:
   420/280 + 630/280 = 420 + 630/280 = 1050/280
5. 1050/280 simplified gives 15/4
6. So, 84/56 + 90/40 = 15/4
   In mixed form: 33/4

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