Question

Simplify 2 upon 5 + 3 upon 4 - 1 upon 10

Answer 1

Answer:

2/5 +3/4 - 1/10

2×4/5×4 + 3×5/4×5 - 1×2/10×2

8/20 + 15/20 - 2/20

8+15-2 /20

21/20

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