Math Lab

Fraction Comparer

Fractions · Class IV

Which fraction is bigger?

2
type a value
110
3
type a value
110
3
type a value
110
5
type a value
110
Live values
  • Fraction 10.6667
  • Fraction 20.6
  • Larger value0.6667
Live readout
Fraction 10.6667
Fraction 20.6
Larger value0.6667
Numerator 12
Denominator 13
Numerator 23
Denominator 25

Formulas in this lab

  • Fraction 1
    p1/q1p_1/q_1
  • Fraction 2
    p2/q2p_2/q_2
  • Larger value
    max\max
Tip: Cross-multiply to compare: p1*q2 vs p2*q1!

Frequently asked questions

How do we compare fractions?

We compare fractions by looking at the size of each piece. 1/2 is bigger than 1/3 because halves are bigger than thirds. When two fractions have the same bottom number, the one with the bigger top number wins.

How do I use the fraction comparer?

Pick two fractions using the sliders. The lab draws each as a coloured bar of the same total length and tells you which is bigger. The bars make the answer easy to see.

When do we compare fractions?

If you ate 1/4 of a cake and your friend ate 1/3, your friend ate more. Sharing rotis, ribbons, and even time on the swing often involves comparing fractions.

Tip for comparing fractions

If the top numbers are the same, the fraction with the smaller bottom number is bigger. So 1/2 is bigger than 1/8. If the bottoms are the same, the bigger top number is bigger.