Answers

Subtract 40/98 from 21/28

21/28 - 40/98 is 67/196.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 98 is 196
   
   Next, find the equivalent fraction of both fractional numbers with denominator 196
2. For the 1st fraction, since 28 × 7 = 196,
   21/28 = 21 × 7/28 × 7 = 147/196
3. Likewise, for the 2nd fraction, since 98 × 2 = 196,
   40/98 = 40 × 2/98 × 2 = 80/196
4. Subtract the two like fractions:
   147/196 - 80/196 = 147 - 80/196 = 67/196

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