Answers

Add 9/70 and 84/40

1^st number: 9/70, 2^nd number: 2 4/40

9/70 + 84/40 is 78/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   9/70 = 9 × 4/70 × 4 = 36/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   84/40 = 84 × 7/40 × 7 = 588/280
4. Add the two like fractions:
   36/280 + 588/280 = 36 + 588/280 = 624/280
5. 624/280 simplified gives 78/35
6. So, 9/70 + 84/40 = 78/35
   In mixed form: 28/35

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