Answers

Add 4/70 and 5/72

4/70 + 5/72 is 319/2520.

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,
   4/70 = 4 × 36/70 × 36 = 144/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   5/72 = 5 × 35/72 × 35 = 175/2520
4. Add the two like fractions:
   144/2520 + 175/2520 = 144 + 175/2520 = 319/2520
5. So, 4/70 + 5/72 = 319/2520

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