Find 3/7+ -6/11 + -8/21+5/22
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Answer:
(-125/462)
Step-by-step explanation:
3/7+(-6/11)+(-8/21)+5/22
=3/7-6/11-8/21+5/22
=(3/7-8/21)+(-6/11+5/22)
=(3×3-8/11)+(-6×2+5/22)
=(9-8/11)+(-12+5/22)
=1/21+(-7/22)
=1×22+(-7)×21/21×22
=21-147/462
=-125/462
We can multiply 21×22 directly because they have only 1 as common factor.
I think I answered correctly.
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