Add 21/24 and 56/70
21/24 + 56/70 is 67/40.
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,
56/70 = 56 × 12/70 × 12 = 672/840 - Add the two like fractions:
735/840 + 672/840 = 735 + 672/840 = 1407/840 - 1407/840 simplified gives 67/40
- So, 21/24 + 56/70 = 67/40
In mixed form: 127/40
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