Answers

Add 80/35 and 70/20

1^st number: 2 10/35, 2^nd number: 3 10/20

80/35 + 70/20 is 81/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 20 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 35 × 4 = 140,
   80/35 = 80 × 4/35 × 4 = 320/140
3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
   70/20 = 70 × 7/20 × 7 = 490/140
4. Add the two like fractions:
   320/140 + 490/140 = 320 + 490/140 = 810/140
5. 810/140 simplified gives 81/14
6. So, 80/35 + 70/20 = 81/14
   In mixed form: 511/14

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