Add 70/16 and 21/90
1st number: 4 6/16, 2nd number: 21/90
70/16 + 21/90 is 553/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
70/16 = 70 × 45/16 × 45 = 3150/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
21/90 = 21 × 8/90 × 8 = 168/720 - Add the two like fractions:
3150/720 + 168/720 = 3150 + 168/720 = 3318/720 - 3318/720 simplified gives 553/120
- So, 70/16 + 21/90 = 553/120
In mixed form: 473/120
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