Answers

Subtract 90/70 from 20/8

1^st number: 2 4/8, 2^nd number: 1 20/70

20/8 - 90/70 is 17/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 70 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 8 × 35 = 280,
   20/8 = 20 × 35/8 × 35 = 700/280
3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
   90/70 = 90 × 4/70 × 4 = 360/280
4. Subtract the two like fractions:
   700/280 - 360/280 = 700 - 360/280 = 340/280
5. After reducing the fraction, the answer is 17/14
6. In mixed form: 13/14

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