Answers

Add 84/70 and 10/40

1^st number: 1 14/70, 2^nd number: 10/40

84/70 + 10/40 is 29/20.

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,
   84/70 = 84 × 4/70 × 4 = 336/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   10/40 = 10 × 7/40 × 7 = 70/280
4. Add the two like fractions:
   336/280 + 70/280 = 336 + 70/280 = 406/280
5. 406/280 simplified gives 29/20
6. So, 84/70 + 10/40 = 29/20
   In mixed form: 19/20

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