Answers

Add 84/40 and 25/70

1^st number: 2 4/40, 2^nd number: 25/70

84/40 + 25/70 is 86/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 40 × 7 = 280,
   84/40 = 84 × 7/40 × 7 = 588/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   25/70 = 25 × 4/70 × 4 = 100/280
4. Add the two like fractions:
   588/280 + 100/280 = 588 + 100/280 = 688/280
5. 688/280 simplified gives 86/35
6. So, 84/40 + 25/70 = 86/35
   In mixed form: 216/35

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