Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 20/21 of 7/8?"
2021 × 78 is 56.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21×7/8 20/21×14/8 20/42×7/8 20/21×7/16 60/21×7/8 20/21×21/8 20/63×7/8 20/21×7/24 20/21×35/8 20/21×7/40 20/21×49/8 20/21×7/56
© everydaycalculation.com