Answers

Subtract 90/70 from 27/16

1^st number: 1 11/16, 2^nd number: 1 20/70

27/16 - 90/70 is 45/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 70 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 16 × 35 = 560,
   27/16 = 27 × 35/16 × 35 = 945/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   90/70 = 90 × 8/70 × 8 = 720/560
4. Subtract the two like fractions:
   945/560 - 720/560 = 945 - 720/560 = 225/560
5. After reducing the fraction, the answer is 45/112

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