Add 80/30 and 40/56
1st number: 2 20/30, 2nd number: 40/56
80/30 + 40/56 is 71/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
80/30 = 80 × 28/30 × 28 = 2240/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
40/56 = 40 × 15/56 × 15 = 600/840 - Add the two like fractions:
2240/840 + 600/840 = 2240 + 600/840 = 2840/840 - 2840/840 simplified gives 71/21
- So, 80/30 + 40/56 = 71/21
In mixed form: 38/21
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