Answers

Add 70/14 and 42/20

1^st number: 5 0/14, 2^nd number: 2 2/20

70/14 + 42/20 is 71/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 14 × 10 = 140,
   70/14 = 70 × 10/14 × 10 = 700/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   42/20 = 42 × 7/20 × 7 = 294/140
4. Add the two like fractions:
   700/140 + 294/140 = 700 + 294/140 = 994/140
5. 994/140 simplified gives 71/10
6. So, 70/14 + 42/20 = 71/10
   In mixed form: 71/10

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