HCF & LCM

HCF and LCM Worksheet-7

1. What is the Lowest Common Multiple of 24 and 90?

(a) 360               (b) 460               (c) 240               (d) 420

2. Sixth-grade has a Band Recital on every third day. Seventh-grade has a Band Recital on every fourth day. On what day will both grades have a Band Recital?

(a) 15^th day        (b) 12^th day        (c) 8^th day        (d) 20^th day

HCF and LCM Worksheet-8

1. Find the smallest number which when divided by 19, 57 and 133 leaves remainder of 5?

(a) 235               (b) 404               (c) 575                (d) 195

2. For the morning walk Jessica, Britney and Nancy step off together. Their steps measure 70 cm, 75 cm and 80 cm respectively. What is the minimum distance each should walk so that all can cover the same distance in complete steps?

(a) 7400 cm.     (b) 700 cm.       (c) 8400 cm.    (d) 750 cm

HCF and LCM Worksheet-9

1. The product of two numbers is 'x' and their GCF is 'y'. Find the LCM for those numbers.

(a) x/y                (b) y/x                (c) Xy                  (d) x + y

2. GCF of two numbers is 14 and their product is 8400. What is the LCM of those two numbers?

(a) 140                (b) 840               (c) 400               (d) 600