Answers

Subtract 49/9 from 42/10

1^st number: 4 2/10, 2^nd number: 5 4/9

42/10 - 49/9 is -56/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 9 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 10 × 9 = 90,
   42/10 = 42 × 9/10 × 9 = 378/90
3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
   49/9 = 49 × 10/9 × 10 = 490/90
4. Subtract the two like fractions:
   378/90 - 490/90 = 378 - 490/90 = -112/90
5. After reducing the fraction, the answer is -56/45

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