Answers

Subtract 50/42 from 9/10

1^st number: 9/10, 2^nd number: 1 8/42

9/10 - 50/42 is -61/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 10 × 21 = 210,
   9/10 = 9 × 21/10 × 21 = 189/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   50/42 = 50 × 5/42 × 5 = 250/210
4. Subtract the two like fractions:
   189/210 - 250/210 = 189 - 250/210 = -61/210

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