Answers

Subtract 3/42 from 49/45

1^st number: 1 4/45, 2^nd number: 3/42

49/45 - 3/42 is 641/630.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 42 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   49/45 = 49 × 14/45 × 14 = 686/630
3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
   3/42 = 3 × 15/42 × 15 = 45/630
4. Subtract the two like fractions:
   686/630 - 45/630 = 686 - 45/630 = 641/630
5. In mixed form: 111/630

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