Add 28/14 and 81/40
1st number: 2 0/14, 2nd number: 2 1/40
28/14 + 81/40 is 161/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
28/14 = 28 × 20/14 × 20 = 560/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
81/40 = 81 × 7/40 × 7 = 567/280 - Add the two like fractions:
560/280 + 567/280 = 560 + 567/280 = 1127/280 - 1127/280 simplified gives 161/40
- So, 28/14 + 81/40 = 161/40
In mixed form: 41/40
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