Answers

Subtract 21/60 from 10/72

10/72 - 21/60 is -19/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 60 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   10/72 = 10 × 5/72 × 5 = 50/360
3. Likewise, for the 2nd fraction, since 60 × 6 = 360,
   21/60 = 21 × 6/60 × 6 = 126/360
4. Subtract the two like fractions:
   50/360 - 126/360 = 50 - 126/360 = -76/360
5. After reducing the fraction, the answer is -19/90

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