Answers

Subtract 90/64 from 30/20

1^st number: 1 10/20, 2^nd number: 1 26/64

30/20 - 90/64 is 3/32.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 64 is 320
   
   Next, find the equivalent fraction of both fractional numbers with denominator 320
2. For the 1st fraction, since 20 × 16 = 320,
   30/20 = 30 × 16/20 × 16 = 480/320
3. Likewise, for the 2nd fraction, since 64 × 5 = 320,
   90/64 = 90 × 5/64 × 5 = 450/320
4. Subtract the two like fractions:
   480/320 - 450/320 = 480 - 450/320 = 30/320
5. After reducing the fraction, the answer is 3/32

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