Answers

Add 80/8 and 42/80

1^st number: 10 0/8, 2^nd number: 42/80

80/8 + 42/80 is 421/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 8 × 10 = 80,
   80/8 = 80 × 10/8 × 10 = 800/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   42/80 = 42 × 1/80 × 1 = 42/80
4. Add the two like fractions:
   800/80 + 42/80 = 800 + 42/80 = 842/80
5. 842/80 simplified gives 421/40
6. So, 80/8 + 42/80 = 421/40
   In mixed form: 1021/40

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