Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/40 of 12/63?"
2140 × 1263 is 110.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/40×12/63 21/40×24/63 21/80×12/63 63/40×12/63 21/40×36/63 21/40×60/63 21/40×84/63
© everydaycalculation.com