Answers

Subtract 35/30 from 42/72

1^st number: 42/72, 2^nd number: 1 5/30

42/72 - 35/30 is -7/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 30 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   42/72 = 42 × 5/72 × 5 = 210/360
3. Likewise, for the 2nd fraction, since 30 × 12 = 360,
   35/30 = 35 × 12/30 × 12 = 420/360
4. Subtract the two like fractions:
   210/360 - 420/360 = 210 - 420/360 = -210/360
5. After reducing the fraction, the answer is -7/12

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