Answers

Add 80/56 and 28/70

1^st number: 1 24/56, 2^nd number: 28/70

80/56 + 28/70 is 64/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 56 × 5 = 280,
   80/56 = 80 × 5/56 × 5 = 400/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   28/70 = 28 × 4/70 × 4 = 112/280
4. Add the two like fractions:
   400/280 + 112/280 = 400 + 112/280 = 512/280
5. 512/280 simplified gives 64/35
6. So, 80/56 + 28/70 = 64/35
   In mixed form: 129/35

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