Answers

Subtract 2/20 from 70/72

70/72 - 2/20 is 157/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 20 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   70/72 = 70 × 5/72 × 5 = 350/360
3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
   2/20 = 2 × 18/20 × 18 = 36/360
4. Subtract the two like fractions:
   350/360 - 36/360 = 350 - 36/360 = 314/360
5. After reducing the fraction, the answer is 157/180

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