Answer:
Step-by-step explanation:
The common denominator is
10: = 2 * 5
1/5 = 1 * 5
1/4 = 1 * 2 * 2
So the lowest common denominator = two 2s and one 5. All fractions must have the Lowest common denominator as their denominator. In addition, the numerator has to be adjusted.
6 /10 = (6*2) / (10*2) = 12/20
1/5 = (1 * 4) / (5 * 4) = 4/20
1/4 = (1* 5)/(4*5) = 5/20
12/20 - 4/20 + 5/20
17/20 - 4/20
Answer 13/20
