Answers

Subtract 75/30 from 42/56

1^st number: 42/56, 2^nd number: 2 15/30

42/56 - 75/30 is -7/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 30 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 56 × 15 = 840,
   42/56 = 42 × 15/56 × 15 = 630/840
3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
   75/30 = 75 × 28/30 × 28 = 2100/840
4. Subtract the two like fractions:
   630/840 - 2100/840 = 630 - 2100/840 = -1470/840
5. After reducing the fraction, the answer is -7/4

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