Answers

Subtract 6/90 from 7/40

7/40 - 6/90 is 13/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   7/40 = 7 × 9/40 × 9 = 63/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   6/90 = 6 × 4/90 × 4 = 24/360
4. Subtract the two like fractions:
   63/360 - 24/360 = 63 - 24/360 = 39/360
5. After reducing the fraction, the answer is 13/120

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