Answers

Subtract 20/49 from 4/45

4/45 - 20/49 is -704/2205.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 49 is 2205
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2205
2. For the 1st fraction, since 45 × 49 = 2205,
   4/45 = 4 × 49/45 × 49 = 196/2205
3. Likewise, for the 2nd fraction, since 49 × 45 = 2205,
   20/49 = 20 × 45/49 × 45 = 900/2205
4. Subtract the two like fractions:
   196/2205 - 900/2205 = 196 - 900/2205 = -704/2205

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