Add 72/90 and 15/56
72/90 + 15/56 is 299/280.
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,
72/90 = 72 × 28/90 × 28 = 2016/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
15/56 = 15 × 45/56 × 45 = 675/2520 - Add the two like fractions:
2016/2520 + 675/2520 = 2016 + 675/2520 = 2691/2520 - 2691/2520 simplified gives 299/280
- So, 72/90 + 15/56 = 299/280
In mixed form: 119/280
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