Answers

Add 45/15 and 21/70

1^st number: 3 0/15, 2^nd number: 21/70

45/15 + 21/70 is 33/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   45/15 = 45 × 14/15 × 14 = 630/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   21/70 = 21 × 3/70 × 3 = 63/210
4. Add the two like fractions:
   630/210 + 63/210 = 630 + 63/210 = 693/210
5. 693/210 simplified gives 33/10
6. So, 45/15 + 21/70 = 33/10
   In mixed form: 33/10

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