Answers

Subtract 36/72 from 42/30

1^st number: 1 12/30, 2^nd number: 36/72

42/30 - 36/72 is 9/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 30 × 12 = 360,
   42/30 = 42 × 12/30 × 12 = 504/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   36/72 = 36 × 5/72 × 5 = 180/360
4. Subtract the two like fractions:
   504/360 - 180/360 = 504 - 180/360 = 324/360
5. After reducing the fraction, the answer is 9/10

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