Sheena purchased 12 meters of cloth. She used 3 7/9 meters of it for curtains and 2 4/7 meters for a bed sheet how much cloth is left
Answers
total length of the cloth = 12 m
length of cloth used in curtains = 3 7/9m
=34/9 m
length of the cloth used in bed sheets =
2 4/7m = 18/7m
total length of cloth used = 34/9 + 18/7
LCM OF 9,7=63
34×7/9×7=238/63
18×9/7×9=162/63
238/63+162/63
=400/63
cloth remaining = 12/1 - 400/63
LCM OF 1,63=63
12×63/1×63=756/63
756/60-400/63
=356/63m
Answer:
used cloth=3 7/9m +2 4/7 m
= (9×3)+7/9 +(7×2)+4/7
=27+7/9 + 14+4/7
=34/9 +18/7
LCM of 9 and 7=63
=34×7 +18×9/63
= 238+ 162/63
= 400/63
she bought 12 m so cloth left=12 - 400/63
=63×12-400/63
= 756-400/63
= 356/63
=5 41/63