Answers

Subtract 54/72 from 75/70

1^st number: 1 5/70, 2^nd number: 54/72

75/70 - 54/72 is 9/28.

Steps for subtracting 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,
   75/70 = 75 × 36/70 × 36 = 2700/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   54/72 = 54 × 35/72 × 35 = 1890/2520
4. Subtract the two like fractions:
   2700/2520 - 1890/2520 = 2700 - 1890/2520 = 810/2520
5. After reducing the fraction, the answer is 9/28

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