Add 28/70 and 21/48
28/70 + 21/48 is 67/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 48 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 70 × 24 = 1680,
28/70 = 28 × 24/70 × 24 = 672/1680 - Likewise, for the 2nd fraction, since 48 × 35 = 1680,
21/48 = 21 × 35/48 × 35 = 735/1680 - Add the two like fractions:
672/1680 + 735/1680 = 672 + 735/1680 = 1407/1680 - 1407/1680 simplified gives 67/80
- So, 28/70 + 21/48 = 67/80
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