Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 12/90 of 10/20?"
1290 × 1020 is 115.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/90×10/20 12/90×10/40 36/90×10/20 12/90×30/20 12/90×10/60 60/90×10/20 12/90×50/20 84/90×10/20 12/90×70/20
© everydaycalculation.com