Add 50/56 and 21/90
50/56 + 21/90 is 473/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
50/56 = 50 × 45/56 × 45 = 2250/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
21/90 = 21 × 28/90 × 28 = 588/2520 - Add the two like fractions:
2250/2520 + 588/2520 = 2250 + 588/2520 = 2838/2520 - 2838/2520 simplified gives 473/420
- So, 50/56 + 21/90 = 473/420
In mixed form: 153/420
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