Answers

Add 45/70 and 40/16

1^st number: 45/70, 2^nd number: 2 8/16

45/70 + 40/16 is 22/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 16 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   45/70 = 45 × 8/70 × 8 = 360/560
3. Likewise, for the 2nd fraction, since 16 × 35 = 560,
   40/16 = 40 × 35/16 × 35 = 1400/560
4. Add the two like fractions:
   360/560 + 1400/560 = 360 + 1400/560 = 1760/560
5. 1760/560 simplified gives 22/7
6. So, 45/70 + 40/16 = 22/7
   In mixed form: 31/7

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