Answers

Add 80/90 and 42/6

1^st number: 80/90, 2^nd number: 7 0/6

80/90 + 42/6 is 71/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 6 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   80/90 = 80 × 1/90 × 1 = 80/90
3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
   42/6 = 42 × 15/6 × 15 = 630/90
4. Add the two like fractions:
   80/90 + 630/90 = 80 + 630/90 = 710/90
5. 710/90 simplified gives 71/9
6. So, 80/90 + 42/6 = 71/9
   In mixed form: 78/9

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