Add 90/28 and 45/80
1st number: 3 6/28, 2nd number: 45/80
90/28 + 45/80 is 423/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
90/28 = 90 × 20/28 × 20 = 1800/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
45/80 = 45 × 7/80 × 7 = 315/560 - Add the two like fractions:
1800/560 + 315/560 = 1800 + 315/560 = 2115/560 - 2115/560 simplified gives 423/112
- So, 90/28 + 45/80 = 423/112
In mixed form: 387/112
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