Answers

Subtract 18/49 from 42/30

1^st number: 1 12/30, 2^nd number: 18/49

42/30 - 18/49 is 253/245.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 49 is 1470
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1470
2. For the 1st fraction, since 30 × 49 = 1470,
   42/30 = 42 × 49/30 × 49 = 2058/1470
3. Likewise, for the 2nd fraction, since 49 × 30 = 1470,
   18/49 = 18 × 30/49 × 30 = 540/1470
4. Subtract the two like fractions:
   2058/1470 - 540/1470 = 2058 - 540/1470 = 1518/1470
5. After reducing the fraction, the answer is 253/245
6. In mixed form: 18/245

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