17/30 feet Explanation: Blue fish: 2/15 feet long Orange fish: 7/10 feet long
Subtract the orange fish’s length by the blue fish’s: 7/10 - 2/15 Find LCD- 30 Multiply both denominators of each fraction by a number that makes both 30 (whatever that number is multiply that also to both nunerators): 7 • 3 / 10 • 3 = 21/30 2 • 2 / 15 • 2 = 4/30
SUBTRACT: 21/30 - 4/30 = 17/30 FINAL ANSWER: the orange fish is 17/30 feet longer than the blue fish.
