Answers

Add 40/70 and 84/45

1^st number: 40/70, 2^nd number: 1 39/45

40/70 + 84/45 is 256/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 70 × 9 = 630,
   40/70 = 40 × 9/70 × 9 = 360/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   84/45 = 84 × 14/45 × 14 = 1176/630
4. Add the two like fractions:
   360/630 + 1176/630 = 360 + 1176/630 = 1536/630
5. 1536/630 simplified gives 256/105
6. So, 40/70 + 84/45 = 256/105
   In mixed form: 246/105

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