Answers

Add 1/72 and 18/70

1/72 + 18/70 is 683/2520.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 70 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 72 × 35 = 2520,
   1/72 = 1 × 35/72 × 35 = 35/2520
3. Likewise, for the 2nd fraction, since 70 × 36 = 2520,
   18/70 = 18 × 36/70 × 36 = 648/2520
4. Add the two like fractions:
   35/2520 + 648/2520 = 35 + 648/2520 = 683/2520
5. So, 1/72 + 18/70 = 683/2520

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