Answers

Subtract 25/49 from 42/20

1^st number: 2 2/20, 2^nd number: 25/49

42/20 - 25/49 is 779/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 49 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   42/20 = 42 × 49/20 × 49 = 2058/980
3. Likewise, for the 2nd fraction, since 49 × 20 = 980,
   25/49 = 25 × 20/49 × 20 = 500/980
4. Subtract the two like fractions:
   2058/980 - 500/980 = 2058 - 500/980 = 1558/980
5. After reducing the fraction, the answer is 779/490
6. In mixed form: 1289/490

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