Answers

Subtract 15/16 from 56/90

56/90 - 15/16 is -227/720.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 16 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   56/90 = 56 × 8/90 × 8 = 448/720
3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
   15/16 = 15 × 45/16 × 45 = 675/720
4. Subtract the two like fractions:
   448/720 - 675/720 = 448 - 675/720 = -227/720

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