Answers

Subtract 20/35 from 90/80

1^st number: 1 10/80, 2^nd number: 20/35

90/80 - 20/35 is 31/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 35 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   90/80 = 90 × 7/80 × 7 = 630/560
3. Likewise, for the 2nd fraction, since 35 × 16 = 560,
   20/35 = 20 × 16/35 × 16 = 320/560
4. Subtract the two like fractions:
   630/560 - 320/560 = 630 - 320/560 = 310/560
5. After reducing the fraction, the answer is 31/56

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