Answers

Subtract 36/42 from 1/30

1/30 - 36/42 is -173/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   1/30 = 1 × 7/30 × 7 = 7/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   36/42 = 36 × 5/42 × 5 = 180/210
4. Subtract the two like fractions:
   7/210 - 180/210 = 7 - 180/210 = -173/210

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