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22/5 is changed into 4 and 2/5
A whole number could be converted to a mixed number, but that might only be useful when subtracting a mixed number from a whole number. To change a whole number to a mixed number, simply take one away from the whole number and then change the 1 to a fraction that is equivalent to 1 (numerator and denominator are the same). For example 5 - 2 1/4. To subtract, you might want to change the 5 to 4 4/4. Then, you can subtract 1/4 from 4/4 to get 3/4 and 2 from 4 to get 2. The answer is 2 3/4.
3.8 = 3 and 8/10 = 3 and 4/5
Adding/SubtractingWhen adding and subtracting two numbers with different signs, you always follow this rule:If the negative is before the positive number, then switch them-5+4 to 4-54-5 is -1.You could also switch the signs from -5+4 to 5-4you end up with one, but the answer will have the same sign as the larger number.So you still end up with -1.If the positive number is before the negative, Ex:6+-2and the larger number is the positive number, you follow the "Keep it. Change it. Change it." Rule.Keep the 6.Change the + to -Change the -2 to a +2, also written as 2So, 6-2.answer would be 4.
change 4 to 4/1 then multiply that by 5/5 you should get 20/5