Add 30/56 and 40/70
30/56 + 40/70 is 31/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
30/56 = 30 × 5/56 × 5 = 150/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
40/70 = 40 × 4/70 × 4 = 160/280 - Add the two like fractions:
150/280 + 160/280 = 150 + 160/280 = 310/280 - 310/280 simplified gives 31/28
- So, 30/56 + 40/70 = 31/28
In mixed form: 13/28
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