IDNStudy.com, kung saan nagtatagpo ang mga eksperto para sagutin ang iyong mga tanong. Alamin ang mga maaasahang sagot sa iyong mga tanong mula sa aming malawak na kaalaman sa mga eksperto.
Sagot :
first, find their LCD.
take for an example: 2/5 - 3/8
their LCD is 40. then 40 ÷ 5(denominator of the 1st fract.) × 2 (numerator of the 1st fract.) =16 then copy 40 as its denominator so it becomes 16/40
After performing the first fraction, the second fraction next.
40÷8 ×3 = 15/40.
Lastly, subtract the fractions. 16/40 - 15/40. because their denominator was already the same, just simply subtract their numerator and copy the denominator. the answer is 1/40.
take for an example: 2/5 - 3/8
their LCD is 40. then 40 ÷ 5(denominator of the 1st fract.) × 2 (numerator of the 1st fract.) =16 then copy 40 as its denominator so it becomes 16/40
After performing the first fraction, the second fraction next.
40÷8 ×3 = 15/40.
Lastly, subtract the fractions. 16/40 - 15/40. because their denominator was already the same, just simply subtract their numerator and copy the denominator. the answer is 1/40.
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