Answers

Subtract 70/40 from 25/49

1^st number: 25/49, 2^nd number: 1 30/40

25/49 - 70/40 is -243/196.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 40 is 1960
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1960
2. For the 1st fraction, since 49 × 40 = 1960,
   25/49 = 25 × 40/49 × 40 = 1000/1960
3. Likewise, for the 2nd fraction, since 40 × 49 = 1960,
   70/40 = 70 × 49/40 × 49 = 3430/1960
4. Subtract the two like fractions:
   1000/1960 - 3430/1960 = 1000 - 3430/1960 = -2430/1960
5. After reducing the fraction, the answer is -243/196

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