Answers

Subtract 42/64 from 90/98

90/98 - 42/64 is 411/1568.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 64 is 3136
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3136
2. For the 1st fraction, since 98 × 32 = 3136,
   90/98 = 90 × 32/98 × 32 = 2880/3136
3. Likewise, for the 2nd fraction, since 64 × 49 = 3136,
   42/64 = 42 × 49/64 × 49 = 2058/3136
4. Subtract the two like fractions:
   2880/3136 - 2058/3136 = 2880 - 2058/3136 = 822/3136
5. After reducing the fraction, the answer is 411/1568

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