Answers

Subtract 90/70 from 70/36

1^st number: 1 34/36, 2^nd number: 1 20/70

70/36 - 90/70 is 83/126.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 70 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 36 × 35 = 1260,
   70/36 = 70 × 35/36 × 35 = 2450/1260
3. Likewise, for the 2nd fraction, since 70 × 18 = 1260,
   90/70 = 90 × 18/70 × 18 = 1620/1260
4. Subtract the two like fractions:
   2450/1260 - 1620/1260 = 2450 - 1620/1260 = 830/1260
5. After reducing the fraction, the answer is 83/126

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