Answers

Subtract 3/84 from 56/40

1^st number: 1 16/40, 2^nd number: 3/84

56/40 - 3/84 is 191/140.

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,
   56/40 = 56 × 21/40 × 21 = 1176/840
3. Likewise, for the 2nd fraction, since 84 × 10 = 840,
   3/84 = 3 × 10/84 × 10 = 30/840
4. Subtract the two like fractions:
   1176/840 - 30/840 = 1176 - 30/840 = 1146/840
5. After reducing the fraction, the answer is 191/140
6. In mixed form: 151/140

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