Question

simplfy this with full solition..​

Answer 1

6/7+1+-7/9+-12/7+19/21.

6/7+1/1-7/9-12/7+19/21.

54+63-49-108+57/63.

174-157/63.

17/63=0.26984

HOPE IT HELPS YOU.....

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Answer 2

Answer:

$6 \div 7 + 1 - 7 \div 9 - 12 \div 7 + 19 \div 21 \\ \\ (54 + 63 - 49 - 108 + 57) \div 63 \\ \\ 17 \div 63 |$

Step-by-step explanation:

7,9,7,21 LCM IS 63