Answers

Subtract 9/90 from 7/8

7/8 - 9/90 is 31/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 8 × 45 = 360,
   7/8 = 7 × 45/8 × 45 = 315/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   9/90 = 9 × 4/90 × 4 = 36/360
4. Subtract the two like fractions:
   315/360 - 36/360 = 315 - 36/360 = 279/360
5. After reducing the fraction, the answer is 31/40

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