Add 21/24 and 90/70
1st number: 21/24, 2nd number: 1 20/70
21/24 + 90/70 is 121/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
21/24 = 21 × 35/24 × 35 = 735/840 - Likewise, for the 2nd fraction, since 70 × 12 = 840,
90/70 = 90 × 12/70 × 12 = 1080/840 - Add the two like fractions:
735/840 + 1080/840 = 735 + 1080/840 = 1815/840 - 1815/840 simplified gives 121/56
- So, 21/24 + 90/70 = 121/56
In mixed form: 29/56
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