Answers

Add 84/70 and 15/8

1^st number: 1 14/70, 2^nd number: 1 7/8

84/70 + 15/8 is 123/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 8 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 8 × 35 = 280,
   15/8 = 15 × 35/8 × 35 = 525/280
4. Add the two like fractions:
   336/280 + 525/280 = 336 + 525/280 = 861/280
5. 861/280 simplified gives 123/40
6. So, 84/70 + 15/8 = 123/40
   In mixed form: 33/40

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