Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 42/50 of 42/70?"
4250 × 4270 is 63125.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50×42/70 42/50×84/70
© everydaycalculation.com