Answers

Subtract 6/84 from 90/40

1^st number: 2 10/40, 2^nd number: 6/84

90/40 - 6/84 is 61/28.

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,
   90/40 = 90 × 21/40 × 21 = 1890/840
3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
   6/84 = 6 × 10/84 × 10 = 60/840
4. Subtract the two like fractions:
   1890/840 - 60/840 = 1890 - 60/840 = 1830/840
5. After reducing the fraction, the answer is 61/28
6. In mixed form: 25/28

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