Answers

Add 42/8 and 45/70

1^st number: 5 2/8, 2^nd number: 45/70

42/8 + 45/70 is 165/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 8 × 35 = 280,
   42/8 = 42 × 35/8 × 35 = 1470/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   45/70 = 45 × 4/70 × 4 = 180/280
4. Add the two like fractions:
   1470/280 + 180/280 = 1470 + 180/280 = 1650/280
5. 1650/280 simplified gives 165/28
6. So, 42/8 + 45/70 = 165/28
   In mixed form: 525/28

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