Answers

Add 9/70 and 15/4

1^st number: 9/70, 2^nd number: 3 3/4

9/70 + 15/4 is 543/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 4 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 70 × 2 = 140,
   9/70 = 9 × 2/70 × 2 = 18/140
3. Likewise, for the 2nd fraction, since 4 × 35 = 140,
   15/4 = 15 × 35/4 × 35 = 525/140
4. Add the two like fractions:
   18/140 + 525/140 = 18 + 525/140 = 543/140
5. So, 9/70 + 15/4 = 543/140
   In mixed form: 3123/140

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