Answers

Subtract 49/84 from 42/40

1^st number: 1 2/40, 2^nd number: 49/84

42/40 - 49/84 is 7/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 84 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   42/40 = 42 × 21/40 × 21 = 882/840
3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
   49/84 = 49 × 10/84 × 10 = 490/840
4. Subtract the two like fractions:
   882/840 - 490/840 = 882 - 490/840 = 392/840
5. After reducing the fraction, the answer is 7/15

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