Answers

Subtract 1/72 from 84/40

1^st number: 2 4/40, 2^nd number: 1/72

84/40 - 1/72 is 751/360.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   84/40 = 84 × 9/40 × 9 = 756/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   1/72 = 1 × 5/72 × 5 = 5/360
4. Subtract the two like fractions:
   756/360 - 5/360 = 756 - 5/360 = 751/360
5. In mixed form: 231/360

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