Answers

Subtract 40/49 from 70/72

70/72 - 40/49 is 275/1764.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 49 is 3528
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3528
2. For the 1st fraction, since 72 × 49 = 3528,
   70/72 = 70 × 49/72 × 49 = 3430/3528
3. Likewise, for the 2nd fraction, since 49 × 72 = 3528,
   40/49 = 40 × 72/49 × 72 = 2880/3528
4. Subtract the two like fractions:
   3430/3528 - 2880/3528 = 3430 - 2880/3528 = 550/3528
5. After reducing the fraction, the answer is 275/1764

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