Answers

Add 40/75 and 42/10

1^st number: 40/75, 2^nd number: 4 2/10

40/75 + 42/10 is 71/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 10 is 150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 150
2. For the 1st fraction, since 75 × 2 = 150,
   40/75 = 40 × 2/75 × 2 = 80/150
3. Likewise, for the 2nd fraction, since 10 × 15 = 150,
   42/10 = 42 × 15/10 × 15 = 630/150
4. Add the two like fractions:
   80/150 + 630/150 = 80 + 630/150 = 710/150
5. 710/150 simplified gives 71/15
6. So, 40/75 + 42/10 = 71/15
   In mixed form: 411/15

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