Question

Find 5÷22 + 3÷7 + {-8÷21} + {-6÷11}

Answer 1

3/7+(-6/11)+(-8/21)+(5/22)

3/7-6/11-8/21+5/22

now we need to take LCM for 7,11,21,22

so the LCM=462

198-252-176+105/462

303-428/462

-125/462