Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/70 of 25/42?"
2170 × 2542 is 528.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/70×25/42 21/70×50/42 21/70×25/84 63/70×25/42 21/70×75/42
© everydaycalculation.com