Add 20/90 and 45/56
20/90 + 45/56 is 517/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
20/90 = 20 × 28/90 × 28 = 560/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
45/56 = 45 × 45/56 × 45 = 2025/2520 - Add the two like fractions:
560/2520 + 2025/2520 = 560 + 2025/2520 = 2585/2520 - 2585/2520 simplified gives 517/504
- So, 20/90 + 45/56 = 517/504
In mixed form: 113/504
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