Add 70/96 and 21/90
70/96 + 21/90 is 77/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 90 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 96 × 15 = 1440,
70/96 = 70 × 15/96 × 15 = 1050/1440 - Likewise, for the 2nd fraction, since 90 × 16 = 1440,
21/90 = 21 × 16/90 × 16 = 336/1440 - Add the two like fractions:
1050/1440 + 336/1440 = 1050 + 336/1440 = 1386/1440 - 1386/1440 simplified gives 77/80
- So, 70/96 + 21/90 = 77/80
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