# 1
1/3 5/12를 곱의 공통 분모로 통분하세요
4/12
5/12
Hint
1개 이상 일때는 예:4/5, 6/3
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5학년3반 11
Freestyle
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1
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1
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# 2
3/10,7/8를 곱의 공통분모로 통분하세요
12/40
35/40
# 3
1-1/9=????
8/9
# 4
1/4 + 2/4=???
3/4
2/4
Hint
앞에가 분모 뒤에가 분자
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