Answers

Subtract 6/40 from 21/18

1^st number: 1 3/18, 2^nd number: 6/40

21/18 - 6/40 is 61/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 18 × 20 = 360,
   21/18 = 21 × 20/18 × 20 = 420/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   6/40 = 6 × 9/40 × 9 = 54/360
4. Subtract the two like fractions:
   420/360 - 54/360 = 420 - 54/360 = 366/360
5. After reducing the fraction, the answer is 61/60
6. In mixed form: 11/60

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