Answers

Add 60/21 and 70/35

1^st number: 2 18/21, 2^nd number: 2 0/35

60/21 + 70/35 is 34/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 35 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   60/21 = 60 × 5/21 × 5 = 300/105
3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
   70/35 = 70 × 3/35 × 3 = 210/105
4. Add the two like fractions:
   300/105 + 210/105 = 300 + 210/105 = 510/105
5. 510/105 simplified gives 34/7
6. So, 60/21 + 70/35 = 34/7
   In mixed form: 46/7

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