Add 15/90 and 45/56
15/90 + 45/56 is 163/168.
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,
15/90 = 15 × 28/90 × 28 = 420/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
45/56 = 45 × 45/56 × 45 = 2025/2520 - Add the two like fractions:
420/2520 + 2025/2520 = 420 + 2025/2520 = 2445/2520 - 2445/2520 simplified gives 163/168
- So, 15/90 + 45/56 = 163/168
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