31/3-22/5
31/3-22/5 =
5x31/(5x3) -3x22/(3x5)=
(5x31 - 3x22)/15 =
(3x31 + 2x31 - 3x22)/15 =
(93 + 62 - 66)/15 =
(93 - 4)/15 =
89/15
Why can't you answer them?
Whoops, my mistake. I was looking in the wrong section.
3 3/1 - 2 2/5
3 1/3 - 2 2/5 =
3 - 2 + 1/3 - 2/5 =
1 + 1/3 - 2/5.
Now 1/3 - 2/5 =.....???
To solve the expression 31/3 - 22/5, you need to find a common denominator for the fractions and then perform the subtraction. Here's how to do it:
Step 1: Find a common denominator
To find a common denominator for the fractions 31/3 and 22/5, you need to determine the smallest multiple (common multiple) of the denominators, which are 3 and 5. In this case, the common multiple is 15.
Step 2: Adjust the fractions
To adjust the fractions, you need to multiply the numerator and the denominator of each fraction by the same value so that the denominators become equal to the common denominator (15). Here's what you do:
For 31/3: Multiply both numerator and denominator by 5:
31/3 * 5/5 = 155/15
For 22/5: Multiply both numerator and denominator by 3:
22/5 * 3/3 = 66/15
Now, you have transformed the fractions with equal denominators.
Step 3: Perform subtraction
Now that the fractions have the same denominator, you can subtract their numerators directly. Here's how:
155/15 - 66/15 = (155 - 66)/15 = 89/15
So, the result of the expression 31/3 - 22/5 is 89/15.