Answers

Add 36/70 and 36/21

1^st number: 36/70, 2^nd number: 1 15/21

36/70 + 36/21 is 78/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 21 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   36/70 = 36 × 3/70 × 3 = 108/210
3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
   36/21 = 36 × 10/21 × 10 = 360/210
4. Add the two like fractions:
   108/210 + 360/210 = 108 + 360/210 = 468/210
5. 468/210 simplified gives 78/35
6. So, 36/70 + 36/21 = 78/35
   In mixed form: 28/35

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