Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 10/21 of 7/8?"
1021 × 78 is 512.
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21×7/8 10/21×14/8 10/42×7/8 10/21×7/16 30/21×7/8 10/21×21/8 10/63×7/8 10/21×7/24 50/21×7/8 10/21×35/8 10/21×7/40 70/21×7/8 10/21×49/8 10/21×7/56
© everydaycalculation.com