Answers

Add 72/8 and 45/70

1^st number: 9 0/8, 2^nd number: 45/70

72/8 + 45/70 is 135/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 8 × 35 = 280,
   72/8 = 72 × 35/8 × 35 = 2520/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   45/70 = 45 × 4/70 × 4 = 180/280
4. Add the two like fractions:
   2520/280 + 180/280 = 2520 + 180/280 = 2700/280
5. 2700/280 simplified gives 135/14
6. So, 72/8 + 45/70 = 135/14
   In mixed form: 99/14

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