Answers

Subtract 21/32 from 70/90

70/90 - 21/32 is 35/288.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 32 is 1440
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1440
2. For the 1st fraction, since 90 × 16 = 1440,
   70/90 = 70 × 16/90 × 16 = 1120/1440
3. Likewise, for the 2nd fraction, since 32 × 45 = 1440,
   21/32 = 21 × 45/32 × 45 = 945/1440
4. Subtract the two like fractions:
   1120/1440 - 945/1440 = 1120 - 945/1440 = 175/1440
5. After reducing the fraction, the answer is 35/288

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