Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 50/70 of 3/90?"
5070 × 390 is 142.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/70×6/90 50/70×9/90 50/70×15/90 50/70×21/90
© everydaycalculation.com