Answers

Subtract 90/24 from 75/70

1^st number: 1 5/70, 2^nd number: 3 18/24

75/70 - 90/24 is -75/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 24 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 70 × 12 = 840,
   75/70 = 75 × 12/70 × 12 = 900/840
3. Likewise, for the 2nd fraction, since 24 × 35 = 840,
   90/24 = 90 × 35/24 × 35 = 3150/840
4. Subtract the two like fractions:
   900/840 - 3150/840 = 900 - 3150/840 = -2250/840
5. After reducing the fraction, the answer is -75/28

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