Add 80/28 and 42/45
1st number: 2 24/28, 2nd number: 42/45
80/28 + 42/45 is 398/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
80/28 = 80 × 45/28 × 45 = 3600/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
42/45 = 42 × 28/45 × 28 = 1176/1260 - Add the two like fractions:
3600/1260 + 1176/1260 = 3600 + 1176/1260 = 4776/1260 - 4776/1260 simplified gives 398/105
- So, 80/28 + 42/45 = 398/105
In mixed form: 383/105
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