Add 50/15 and 90/21
1st number: 3 5/15, 2nd number: 4 6/21
50/15 + 90/21 is 160/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
50/15 = 50 × 7/15 × 7 = 350/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
90/21 = 90 × 5/21 × 5 = 450/105 - Add the two like fractions:
350/105 + 450/105 = 350 + 450/105 = 800/105 - 800/105 simplified gives 160/21
- So, 50/15 + 90/21 = 160/21
In mixed form: 713/21
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