Add 20/56 and 25/90
20/56 + 25/90 is 40/63.
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,
20/56 = 20 × 45/56 × 45 = 900/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
25/90 = 25 × 28/90 × 28 = 700/2520 - Add the two like fractions:
900/2520 + 700/2520 = 900 + 700/2520 = 1600/2520 - 1600/2520 simplified gives 40/63
- So, 20/56 + 25/90 = 40/63
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