Answers

Add 16/70 and 80/72

1^st number: 16/70, 2^nd number: 1 8/72

16/70 + 80/72 is 422/315.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 72 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 70 × 36 = 2520,
   16/70 = 16 × 36/70 × 36 = 576/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   80/72 = 80 × 35/72 × 35 = 2800/2520
4. Add the two like fractions:
   576/2520 + 2800/2520 = 576 + 2800/2520 = 3376/2520
5. 3376/2520 simplified gives 422/315
6. So, 16/70 + 80/72 = 422/315
   In mixed form: 1107/315

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