Add 80/15 and 72/56
1st number: 5 5/15, 2nd number: 1 16/56
80/15 + 72/56 is 139/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
80/15 = 80 × 56/15 × 56 = 4480/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
72/56 = 72 × 15/56 × 15 = 1080/840 - Add the two like fractions:
4480/840 + 1080/840 = 4480 + 1080/840 = 5560/840 - 5560/840 simplified gives 139/21
- So, 80/15 + 72/56 = 139/21
In mixed form: 613/21
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