Slide to find
Find a common denominator for {{state.problem.d1}} and {{state.problem.d2}}.
Is {{state.s1.slider}} a multiple of {{state.problem.d1}}?
Is {{state.s1.slider}} a multiple of {{state.problem.d2}}?
Tap to multiply
Tap the fractions to upgrade their denominators to {{state.problem.lcm}}.
x{{state.s2.m1}}
=
Ready
-
x{{state.s2.m2}}
=
Ready
Hold to unpack
We only have {{state.problem.n1 * state.problem.mult1}} pieces, but need to subtract {{state.problem.n2 * state.problem.mult2}}.
Press and hold a whole block to unpack it!
1/{{state.problem.lcm}}
1/{{state.problem.lcm}}
Unpacked!
1 whole = {{state.problem.lcm}} pieces
Drag to subtract
Remove {{state.problem.w2}} wholes and {{state.problem.n2 * state.problem.mult2}} pieces.
Your Blocks
1/{{state.problem.lcm}}
Subtract Zone
Wholes: {{droppedWholes}} / {{state.problem.w2}}
Pieces: {{droppedPieces}} / {{state.problem.n2 * state.problem.mult2}}
1/{{state.problem.lcm}}
{{state.s4.error}}
Set final answer
Count the remaining blocks and set your answer.
1/{{state.problem.lcm}}
Nothing left!
{{state.s5.w}}
{{state.s5.n}}
{{state.s5.d}}
Brilliant!
You successfully subtracted the mixed numbers by finding a common denominator and borrowing.