Answers

Subtract 40/42 from 50/15

1^st number: 3 5/15, 2^nd number: 40/42

50/15 - 40/42 is 50/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   50/15 = 50 × 14/15 × 14 = 700/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   40/42 = 40 × 5/42 × 5 = 200/210
4. Subtract the two like fractions:
   700/210 - 200/210 = 700 - 200/210 = 500/210
5. After reducing the fraction, the answer is 50/21
6. In mixed form: 28/21

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