Answers

Add 70/75 and 20/72

70/75 + 20/72 is 109/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 72 is 1800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1800
2. For the 1st fraction, since 75 × 24 = 1800,
   70/75 = 70 × 24/75 × 24 = 1680/1800
3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
   20/72 = 20 × 25/72 × 25 = 500/1800
4. Add the two like fractions:
   1680/1800 + 500/1800 = 1680 + 500/1800 = 2180/1800
5. 2180/1800 simplified gives 109/90
6. So, 70/75 + 20/72 = 109/90
   In mixed form: 119/90

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