Answers

Subtract 40/7 from 42/50

1^st number: 42/50, 2^nd number: 5 5/7

42/50 - 40/7 is -853/175.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 7 is 350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 350
2. For the 1st fraction, since 50 × 7 = 350,
   42/50 = 42 × 7/50 × 7 = 294/350
3. Likewise, for the 2nd fraction, since 7 × 50 = 350,
   40/7 = 40 × 50/7 × 50 = 2000/350
4. Subtract the two like fractions:
   294/350 - 2000/350 = 294 - 2000/350 = -1706/350
5. After reducing the fraction, the answer is -853/175

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